Optical image capturing system having seven lenses, visible light image plane, and infrared light image plane

ABSTRACT

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

BACKGROUND OF THE INVENTION 1. Technical Field

The present invention relates generally to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of the ordinaryphotographing camera is commonly selected from charge coupled device(CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor).In addition, as advanced semiconductor manufacturing technology enablesthe minimization of the pixel size of the image sensing device, thedevelopment of the optical image capturing system towards the field ofhigh pixels. Therefore, the requirement for high imaging quality israpidly raised.

The conventional optical system of the portable electronic deviceusually has five or six lenses. However, the optical system is asked totake pictures in a dark environment, in other words, the optical systemis asked to have a large aperture. The conventional optical systemprovides high optical performance as required.

It is an important issue to increase the quantity of light entering thelens. In addition, the modern lens is also asked to have severalcharacters, including high image quality.

BRIEF SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces ofseven-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase thequantity of incoming light of the optical image capturing system, and toimprove imaging quality for image formation, so as to be applied tominimized electronic products.

In addition, when it comes to certain application of optical imaging,there will be a need to capture image via light sources with wavelengthsin both visible and infrared ranges, an example of this kind ofapplication is IP video surveillance camera, which is equipped with theDay & Night function. The visible light spectrum for human vision haswavelengths ranging from 400 to 700 nm, but the image formed on thecamera sensor includes infrared light, which is invisible to human eyes.Therefore, under certain circumstances, an IR cut filter removable (ICR)is placed before the sensor of the IP video surveillance camera, inorder to ensure that only the light that is visible to human eyes ispicked up by the sensor eventually, so as to enhance the “fidelity” ofthe image. The ICR of the IP video surveillance camera can completelyfilter out the infrared light under daytime mode to avoid color cast;whereas under night mode, it allows infrared light to pass through thelens to enhance the image brightness. Nevertheless, the elements of theICR occupy a significant amount of space and are expensive, which impedeto the design and manufacture of miniaturized surveillance cameras inthe future.

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which utilizethe combination of refractive powers, convex surfaces and concavesurfaces of seven lenses, as well as the selection of materials thereof,to reduce the difference between the imaging focal length of visiblelight and imaging focal length of infrared light, in order to achievethe near “confocal” effect without the use of ICR elements.

The term and its definition to the lens parameter in the embodiment ofthe present are shown as below for further reference.

The lens parameters related to the magnification of the optical imagecapturing system

The optical image capturing system can be designed and applied tobiometrics, for example, facial recognition. When the embodiment of thepresent disclosure is configured to capture image for facialrecognition, the infrared light can be adopted as the operationwavelength. For a face of about 15 centimeters (cm) wide at a distanceof 25-30 cm, at least 30 horizontal pixels can be formed in thehorizontal direction of an image sensor (pixel size of 1.4 micrometers(μm)). The linear magnification of the infrared light on the image planeis LM, and it meets the following conditions: LM≥0.0003, where LM=(30horizontal pixels)*(1.4 μm pixel size)/(15 cm, width of the photographedobject). Alternatively, the visible light can also be adopted as theoperation wavelength for image recognition. When the visible light isadopted, for a face of about 15 cm wide at a distance of 25-30 cm, atleast 50 horizontal pixels can be formed in the horizontal direction ofan image sensor (pixel size of 1.4 micrometers (μm)).

The lens parameter related to a length or a height in the lens:

For visible light spectrum, the present invention may adopt thewavelength of 555 nm as the primary reference wavelength and the basisfor the measurement of focus shift; for infrared spectrum (700-1000 nm),the present invention may adopt the wavelength of 850 nm as the primaryreference wavelength and the basis for the measurement of focus shift.

The optical image capturing system includes a first image plane and asecond image plane. The first image plane is an image plane specificallyfor the visible light, and the first image plane is perpendicular to theoptical axis; the through-focus modulation transfer rate (value of MTF)at the first spatial frequency has a maximum value at the central fieldof view of the first image plane; the second image plane is an imageplane specifically for the infrared light, and second image plane isperpendicular to the optical axis; the through-focus modulation transferrate (value of MTF) at the first spatial frequency has a maximum valuein the central of field of view of the second image plane. The opticalimage capturing system also includes a first average image plane and asecond average image plane. The first average image plane is an imageplane specifically for the visible light, and the first average imageplane is perpendicular to the optical axis. The first average imageplane is installed at the average position of the defocusing positions,where the values of MTF of the visible light at the central field ofview, 0.3 field of view, and the 0.7 field of view are at theirrespective maximum at the first spatial frequency. The second averageimage plane is an image plane specifically for the infrared light, andthe second average image plane is perpendicular to the optical axis. Thesecond average image plane is installed at the average position of thedefocusing positions, where the values of MTF of the infrared light atthe central field of view, 0.3 field of view, and the 0.7 field of vieware at their respective maximum at the first spatial frequency.

The aforementioned first spatial frequency is set to be half of thespatial frequency (half frequency) of the image sensor (sensor) used inthe present invention. For example, for an image sensor having the pixelsize of 1.12 μm or less, one-eighth of the spatial frequency, thequarter spatial frequency, half spatial frequency (half frequency) andfull spatial frequency (full frequency) in the characteristic diagram ofmodulation transfer function are at least 55 cycles/mm, 110 cycles/mm,220 cycles/mm and 440 cycles/mm, respectively. Lights of any field ofview can be further divided into sagittal ray and tangential ray.

The focus shifts where the through-focus MTF values of the visiblesagittal ray at the central field of view, 0.3 field of view, and 0.7field of view of the optical image capturing system are at theirrespective maxima, are denoted by VSFS0, VSFS3, and VSFS7 (unit ofmeasurement: mm), respectively. The maximum values of the through-focusMTF of the visible sagittal ray at the central field of view, 0.3 fieldof view, and 0.7 field of view are denoted by VSMTF0, VSMTF3, andVSMTF7, respectively. The focus shifts where the through-focus MTFvalues of the visible tangential ray at the central field of view, 0.3field of view, and 0.7 field of view of the optical image capturingsystem are at their respective maxima, are denoted by VTFS0, VTFS3, andVTFS7 (unit of measurement: mm), respectively. The maximum values of thethrough-focus MTF of the visible tangential ray at the central field ofview, 0.3 field of view, and 0.7 field of view are denoted by VTMTF0,VTMTF3, and VTMTF7, respectively. The average focus shift (position) ofboth the aforementioned focus shifts of the visible sagittal ray atthree fields of view and focus shifts of the visible tangential ray atthree fields of view is denoted by AVFS (unit of measurement: mm), whichequals to the absolute value |(VSFS0+VSFS3+VSFS7+VTFS0+VTFS3+VTFS7)/6|.

The focus shifts where the through-focus MTF values of the infraredsagittal ray at the central field of view, 0.3 field of view, and 0.7field of view of the optical image capturing system are at theirrespective maxima, are denoted by ISFS0, ISFS3, and ISFS7 (unit ofmeasurement: mm), respectively. The average focus shift (position) ofthe aforementioned focus shifts of the infrared sagittal ray at threefields of view is denoted by AISFS (unit of measurement: mm). Themaximum values of the through-focus MTF of the infrared sagittal ray atthe central field of view, 0.3 field of view, and 0.7 field of view aredenoted by ISMTF0, ISMTF3, and ISMTF7, respectively. The focus shiftswhere the through-focus MTF values of the infrared tangential ray at thecentral field of view, 0.3 field of view, and 0.7 field of view of theoptical image capturing system are at their respective maxima, aredenoted by ITFS0, ITFS3, and ITFS7 (unit of measurement: mm),respectively. The average focus shift (position) of the aforementionedfocus shifts of the infrared tangential ray at three fields of view isdenoted by AITFS (unit of measurement: mm). The maximum values of thethrough-focus MTF of the infrared tangential ray at the central field ofview, 0.3 field of view, and 0.7 field of view are denoted by ITMTF0,ITMTF3, and ITMTF7, respectively. The average focus shift (position) ofboth of the aforementioned focus shifts of the infrared sagittal ray atthe three fields of view and focus shifts of the infrared tangential rayat the three fields of view is denoted by AIFS (unit of measurement:mm), which equals to the absolute value of|(ISFS0+ISFS3+ISFS7+ITFS0+ITFS3+ITFS7)/6|.

The focus shift (difference) between the focal points of the visiblelight and the infrared light at their central fields of view (RGB/IR) ofthe entire optical image capturing system (i.e. wavelength of 850 nmversus wavelength of 555 nm, unit of measurement: mm) is denoted by FS,which satisfies the absolute value |(VSFS0+VTFS0)/2−(ISFS0+ITFS0)/2|.The difference (focus shift) between the average focus shift of thevisible light in the three fields of view and the average focus shift ofthe infrared light in the three fields of view (RGB/IR) of the entireoptical image capturing system is denoted by AFS (i.e. wavelength of 850nm versus wavelength of 555 nm, unit of measurement: mm), which equalsto the absolute value of |AIFS−AVFS|.

A maximum height for image formation of the optical image capturingsystem is denoted by HOI. A height of the optical image capturing systemis denoted by HOS. A distance from the object-side surface of the firstlens to the image-side surface of the seventh lens is denoted by InTL. Adistance from the first lens to the second lens is denoted by IN12(instance). A central thickness of the first lens of the optical imagecapturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens in the optical image capturing systemis denoted by NA1 (instance). A refractive index of the first lens isdenoted by Nd1 (instance).

The lens parameter related to a view angle in the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens:

An entrance pupil diameter of the optical image capturing system isdenoted by HEP. For any surface of any lens, a maximum effective halfdiameter (EHD) is a perpendicular distance between an optical axis and acrossing point on the surface where the incident light with a maximumviewing angle of the system passing the very edge of the entrance pupil.For example, the maximum effective half diameter of the object-sidesurface of the first lens is denoted by EHD11, the maximum effectivehalf diameter of the image-side surface of the first lens is denoted byEHD12, the maximum effective half diameter of the object-side surface ofthe second lens is denoted by EHD21, the maximum effective half diameterof the image-side surface of the second lens is denoted by EHD22, and soon.

The lens parameter related to an arc length of the shape of a surfaceand a surface profile:

For any surface of any lens, a profile curve length of the maximumeffective half diameter is, by definition, measured from a start pointwhere the optical axis of the belonging optical image capturing systempasses through the surface of the lens, along a surface profile of thelens, and finally to an end point of the maximum effective half diameterthereof. In other words, the curve length between the aforementionedstart and end points is the profile curve length of the maximumeffective half diameter, which is denoted by ARS. For example, theprofile curve length of the maximum effective half diameter of theobject-side surface of the first lens is denoted by ARS11, the profilecurve length of the maximum effective half diameter of the image-sidesurface of the first lens is denoted by ARS12, the profile curve lengthof the maximum effective half diameter of the object-side surface of thesecond lens is denoted by ARS21, the profile curve length of the maximumeffective half diameter of the image-side surface of the second lens isdenoted by ARS22, and so on.

For any surface of any lens, a profile curve length of a half of theentrance pupil diameter (HEP) is, by definition, measured from a startpoint where the optical axis of the belonging optical image capturingsystem passes through the surface of the lens, along a surface profileof the lens, and finally to a coordinate point of a perpendiculardistance where is a half of the entrance pupil diameter away from theoptical axis. In other words, the curve length between theaforementioned stat point and the coordinate point is the profile curvelength of a half of the entrance pupil diameter (HEP), and is denoted byARE. For example, the profile curve length of a half of the entrancepupil diameter (HEP) of the object-side surface of the first lens isdenoted by ARE11, the profile curve length of a half of the entrancepupil diameter (HEP) of the image-side surface of the first lens isdenoted by ARE12, the profile curve length of a half of the entrancepupil diameter (HEP) of the object-side surface of the second lens isdenoted by ARE21, the profile curve length of a half of the entrancepupil diameter (HEP) of the image-side surface of the second lens isdenoted by ARE22, and so on.

The lens parameter related to a depth of the lens shape:

A displacement from a point on the object-side surface of the seventhlens, which is passed through by the optical axis, to a point on theoptical axis, where a projection of the maximum effective semi diameterof the object-side surface of the seventh lens ends, is denoted byInRS71 (the depth of the maximum effective semi diameter). Adisplacement from a point on the image-side surface of the seventh lens,which is passed through by the optical axis, to a point on the opticalaxis, where a projection of the maximum effective semi diameter of theimage-side surface of the seventh lens ends, is denoted by InRS72 (thedepth of the maximum effective semi diameter). The depth of the maximumeffective semi diameter (sinkage) on the object-side surface or theimage-side surface of any other lens is denoted in the same manner.

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. By the definition, a distance perpendicular to the optical axisbetween a critical point C51 on the object-side surface of the fifthlens and the optical axis is HVT51 (instance), and a distanceperpendicular to the optical axis between a critical point C52 on theimage-side surface of the fifth lens and the optical axis is HVT52(instance). A distance perpendicular to the optical axis between acritical point C61 on the object-side surface of the sixth lens and theoptical axis is HVT61 (instance), and a distance perpendicular to theoptical axis between a critical point C62 on the image-side surface ofthe sixth lens and the optical axis is HVT62 (instance). A distanceperpendicular to the optical axis between a critical point on theobject-side or image-side surface of other lenses, e.g., the seventhlens, and the optical axis is denoted in the same manner.

The object-side surface of the seventh lens has one inflection pointIF711 which is nearest to the optical axis, and the sinkage value of theinflection point IF711 is denoted by SGI711 (instance). A distanceperpendicular to the optical axis between the inflection point IF711 andthe optical axis is HIF711 (instance). The image-side surface of theseventh lens has one inflection point IF721 which is nearest to theoptical axis, and the sinkage value of the inflection point IF721 isdenoted by SGI721 (instance). A distance perpendicular to the opticalaxis between the inflection point IF721 and the optical axis is HIF721(instance).

The object-side surface of the seventh lens has one inflection pointIF712 which is the second nearest to the optical axis, and the sinkagevalue of the inflection point IF712 is denoted by SGI712 (instance). Adistance perpendicular to the optical axis between the inflection pointIF712 and the optical axis is HIF712 (instance). The image-side surfaceof the seventh lens has one inflection point IF722 which is the secondnearest to the optical axis, and the sinkage value of the inflectionpoint IF722 is denoted by SGI722 (instance). A distance perpendicular tothe optical axis between the inflection point IF722 and the optical axisis HIF722 (instance).

The object-side surface of the seventh lens has one inflection pointIF713 which is the third nearest to the optical axis, and the sinkagevalue of the inflection point IF713 is denoted by SGI713 (instance). Adistance perpendicular to the optical axis between the inflection pointIF713 and the optical axis is HIF713 (instance). The image-side surfaceof the seventh lens has one inflection point IF723 which is the thirdnearest to the optical axis, and the sinkage value of the inflectionpoint IF723 is denoted by SGI723 (instance). A distance perpendicular tothe optical axis between the inflection point IF723 and the optical axisis HIF723 (instance).

The object-side surface of the seventh lens has one inflection pointIF714 which is the fourth nearest to the optical axis, and the sinkagevalue of the inflection point IF714 is denoted by SGI714 (instance). Adistance perpendicular to the optical axis between the inflection pointIF714 and the optical axis is HIF714 (instance). The image-side surfaceof the seventh lens has one inflection point IF724 which is the fourthnearest to the optical axis, and the sinkage value of the inflectionpoint IF724 is denoted by SGI724 (instance). A distance perpendicular tothe optical axis between the inflection point IF724 and the optical axisis HIF724 (instance).

An inflection point, a distance perpendicular to the optical axisbetween the inflection point and the optical axis, and a sinkage valuethereof on the object-side surface or image-side surface of other lensesis denoted in the same manner.

The lens parameter related to an aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

Transverse aberration on an edge of an aperture is denoted by STA, whichstands for STOP transverse aberration, and is used to evaluate theperformance of one specific optical image capturing system. Thetransverse aberration of light in any field of view can be calculatedwith a tangential fan or a sagittal fan. More specifically, thetransverse aberration caused when the longest operation wavelength(e.g., 650 nm) and the shortest operation wavelength (e.g., 470 nm) passthrough the edge of the aperture can be used as the reference forevaluating performance. The coordinate directions of the aforementionedtangential fan can be further divided into a positive direction (upperlight) and a negative direction (lower light). The longest operationwavelength which passes through the edge of the aperture has an imagingposition on the image plane in a particular field of view, and thereference wavelength of the mail light (e.g., 555 nm) has anotherimaging position on the image plane in the same field of view. Thetransverse aberration caused when the longest operation wavelengthpasses through the edge of the aperture is defined as a distance betweenthese two imaging positions. Similarly, the shortest operationwavelength which passes through the edge of the aperture has an imagingposition on the image plane in a particular field of view, and thetransverse aberration caused when the shortest operation wavelengthpasses through the edge of the aperture is defined as a distance betweenthe imaging position of the shortest operation wavelength and theimaging position of the reference wavelength. The performance of theoptical image capturing system can be considered excellent if thetransverse aberrations of the shortest and the longest operationwavelength which pass through the edge of the aperture and image on theimage plane in 0.7 field of view (i.e., 0.7 times the height for imageformation HOI) are both less than 100 μm. Furthermore, for a stricterevaluation, the performance cannot be considered excellent unless thetransverse aberrations of the shortest and the longest operationwavelength which pass through the edge of the aperture and image on theimage plane in 0.7 field of view are both less than 80 μm.

The optical image capturing system has a maximum image height HOI on theimage plane vertical to the optical axis. A transverse aberration at 0.7HOI in the positive direction of the tangential fan after the longestoperation wavelength of visible light passing through the edge of theaperture is denoted by PLTA; a transverse aberration at 0.7 HOI in thepositive direction of the tangential fan after the shortest operationwavelength of visible light passing through the edge of the aperture isdenoted by PSTA; a transverse aberration at 0.7 HOI in the negativedirection of the tangential fan after the longest operation wavelengthof visible light passing through the edge of the aperture is denoted byNLTA; a transverse aberration at 0.7 HOI in the negative direction ofthe tangential fan after the shortest operation wavelength of visiblelight passing through the edge of the aperture is denoted by NSTA; atransverse aberration at 0.7 HOI of the sagittal fan after the longestoperation wavelength of visible light passing through the edge of theaperture is denoted by SLTA; a transverse aberration at 0.7 HOI of thesagittal fan after the shortest operation wavelength of visible lightpassing through the edge of the aperture is denoted by SSTA.

The present invention provides an optical image capturing system capableof focusing visible and infrared light (i.e., dual-mode) at the sametime and achieving certain performance, in which the seventh lens isprovided with an inflection point at the object-side surface or at theimage-side surface to adjust the incident angle of each view field andmodify the ODT and the TDT. In addition, the surfaces of the seventhlens are capable of modifying the optical path to improve the imaginingquality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, a fifth lens, assixth lens, a seventh lens, a first image plane, and a second imageplane. The first image plane is an image plane specifically for thevisible light, and the first image plane is perpendicular to the opticalaxis; the through-focus modulation transfer rate (value of MTF) at thefirst spatial frequency has a maximum value at the central field of viewof the first image plane; the second image plane is an image planespecifically for the infrared light, and second image plane isperpendicular to the optical axis; the through-focus modulation transferrate (value of MTF) at the first spatial frequency has a maximum valueat the central of field of view of the second image plane. Each lens ofthe optical image capturing system has refractive power. The opticalimage capturing system satisfies:1.0≤f/HEP≤10.0; 0 deg<HAF≤150 deg; 0.2≤SETP/STP<1; |FS|≤60 μm; and1≤HOS/HOI≤15;

where f1, f2, f3, f4, f5, f6, and f7 are the focal lengths of the first,the second, the third, the fourth, the fifth, the sixth, the seventhlenses, respectively; f is a focal length of the optical image capturingsystem; HEP is an entrance pupil diameter of the optical image capturingsystem; HOS is a distance on the optical axis between an object-sidesurface, which face the object side, of the first lens and the firstimage plane on the optical axis; HAF is a half of a maximum view angleof the optical image capturing system; HOI is the maximum image heighton the first image plane perpendicular to the optical axis of theoptical image capturing system; FS is the distance on the optical axisbetween the first image plane and the second image plane; ETP1, ETP2,ETP3, ETP4, ETP5, ETP6, and ETP7 are respectively a thickness inparallel with the optical axis at a height of ½ HEP of the first lens tothe seventh lens, wherein SETP is a sum of the aforementioned ETP1 toETP7; TP1, TP2, TP3, TP4, TP5, TP6, and TP7 are respectively a thicknessat the optical axis of the first lens to the seventh lens, wherein STPis a sum of the aforementioned TP1 to TP7.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, a first image plane,and a second image plane. The first image plane is an image planespecifically for the visible light, and the first image plane isperpendicular to the optical axis; the through-focus modulation transferrate (value of MTF) at the first spatial frequency has a maximum valueat the central field of view of the first image plane; the second imageplane is an image plane specifically for the infrared light, and secondimage plane is perpendicular to the optical axis; the through-focusmodulation transfer rate (value of MTF) at the first spatial frequencyhas a maximum value at the central of field of view of the second imageplane. The first lens has refractive power, and an object-side surfacethereof could be convex near the optical axis. The second lens hasrefractive power. The third lens has refractive power. The fourth lenshas refractive power. The fifth lens has refractive power. The sixthlens has refractive power. The seventh lens has refractive power. HOI isa maximum height for image formation perpendicular to the optical axison the image plane. At least one lens among the first lens to theseventh lens is made of glass. At least one lens among the first lens tothe seventh lens has positive refractive power. The optical imagecapturing system satisfies:1.0≤f/HEP≤10.0; 0 deg<HAF≤150 deg; 0.2≤EIN/ETL<1; |FS|≤30 μm; and1≤HOS/HOI≤15;

where f1, f2, f3, f4, f5, f6, and f7 are the focal lengths of the first,the second, the third, the fourth, the fifth, the sixth, the seventhlenses, respectively; f is a focal length of the optical image capturingsystem; HEP is an entrance pupil diameter of the optical image capturingsystem; HOS is a distance between the object-side surface of the firstlens and the first image plane on the optical axis; HAF is a half of amaximum view angle of the optical image capturing system; HOI is themaximum image height on the first image plane perpendicular to theoptical axis of the optical image capturing system; FS is the distanceon the optical axis between the first image plane and the second imageplane; ETL is a distance in parallel with the optical axis between acoordinate point at a height of ½ HEP on the object-side surface of thefirst lens and the first image plane; EIN is a distance in parallel withthe optical axis between the coordinate point at the height of ½ HEP onthe object-side surface of the first lens and a coordinate point at aheight of ½ HEP on the image-side surface of the seventh lens.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, a first average imageplane, and a second average image plane. The first average image planeis an image plane specifically for the visible light, and the firstaverage image plane is perpendicular to the optical axis. The firstaverage image plane is installed at the average position of thedefocusing positions, where the values of MTF of the visible light atthe central field of view, 0.3 field of view, and the 0.7 field of vieware at their respective maximum at the first spatial frequency. Thesecond average image plane is an image plane specifically for theinfrared light, and the second average image plane is perpendicular tothe optical axis. The second average image plane is installed at theaverage position of the defocusing positions, where the values of MTF ofthe infrared light at the central field of view, 0.3 field of view, andthe 0.7 field of view are at their respective maximum at the firstspatial frequency. The number of the lenses having refractive power inthe optical image capturing system is seven. HOI is a maximum height forimage formation perpendicular to the optical axis on the image plane. Atleast one lens among the first lens to the seventh lens is made ofglass. The first lens has refractive power. The second lens hasrefractive power. The third lens has refractive power. The fourth lenshas refractive power. The fifth lens has refractive power. The sixthlens has refractive power. The seventh lens has refractive power. Atleast one lens among the first lens to the seventh lens has positiverefractive power. The optical image capturing system satisfies:1≤f/HEP≤10; 0 deg<HAF≤150 deg; |AFS|≤30 μm; 0.2≤SETP/STP<1; and1≤HOS/HOI≤15;

where f1, f2, f3, f4, f5, f6, and f7 are the focal lengths of the first,the second, the third, the fourth, the fifth, the sixth, the seventhlenses, respectively; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance between the object-sidesurface of the first lens and the first average image plane on theoptical axis; HAF is a half of a maximum view angle of the optical imagecapturing system; HOI is the maximum image height on the first averageimage plane perpendicular to the optical axis of the optical imagecapturing system; AFS is the distance between the first average imageplane and the second average image plane; ETL is a distance in parallelwith the optical axis between a coordinate point at a height of ½ HEP onthe object-side surface of the first lens and the image plane; ETP1,ETP2, ETP3, ETP4, ETP5, ETP6, and ETP7 are respectively a thickness inparallel with the optical axis at a height of ½ HEP of the first lens tothe seventh lens, wherein SETP is a sum of the aforementioned ETP1 toETP7; TP1, TP2, TP3, TP4, TP5, TP6, and TP7 are respectively a thicknessat the optical axis of the first lens to the seventh lens, wherein STPis a sum of the aforementioned TP1 to TP7. At least one lens among thefirst lens to the seventh lens is made of glass.

For any lens, the thickness at the height of a half of the entrancepupil diameter (HEP) particularly affects the ability of correctingaberration and differences between optical paths of light in differentfields of view of the common region of each field of view of lightwithin the covered range at the height of a half of the entrance pupildiameter (HEP). With greater thickness, the ability to correctaberration is better. However, the difficulty of manufacturing increasesas well. Therefore, the thickness at the height of a half of theentrance pupil diameter (HEP) of any lens has to be controlled. Theratio between the thickness (ETP) at the height of a half of theentrance pupil diameter (HEP) and the thickness (TP) of any lens on theoptical axis (i.e., ETP/TP) has to be particularly controlled. Forexample, the thickness at the height of a half of the entrance pupildiameter (HEP) of the first lens is denoted by ETP1, the thickness atthe height of a half of the entrance pupil diameter (HEP) of the secondlens is denoted by ETP2, and the thickness at the height of a half ofthe entrance pupil diameter (HEP) of any other lens in the optical imagecapturing system is denoted in the same manner. The optical imagecapturing system of the present invention satisfies:0.3≤SETP/EIN<1;

where SETP is the sum of the aforementioned ETP1 to ETP7.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of manufacturing at the same time, the ratio between thethickness (ETP) at the height of a half of the entrance pupil diameter(HEP) and the thickness (TP) of any lens on the optical axis (i.e.,ETP/TP) has to be particularly controlled. For example, the thickness atthe height of a half of the entrance pupil diameter (HEP) of the firstlens is denoted by ETP1, the thickness of the first lens on the opticalaxis is TP1, and the ratio between these two parameters is ETP1/TP1; thethickness at the height of a half of the entrance pupil diameter (HEP)of the first lens is denoted by ETP2, the thickness of the second lenson the optical axis is TP2, and the ratio between these two parametersis ETP2/TP2. The ratio between the thickness at the height of a half ofthe entrance pupil diameter (HEP) and the thickness of any other lens inthe optical image capturing system is denoted in the same manner. Theoptical image capturing system of the present invention satisfies:0.2≤ETP/TP≤3.

The horizontal distance between two neighboring lenses at the height ofa half of the entrance pupil diameter (HEP) is denoted by ED, whereinthe aforementioned horizontal distance (ED) is parallel to the opticalaxis of the optical image capturing system, and particularly affects theability of correcting aberration and differences between optical pathsof light in different fields of view of the common region of each fieldof view of light at the height of a half of the entrance pupil diameter(HEP). With longer distance, the ability to correct aberration ispotential to be better. However, the difficulty of manufacturingincreases, and the feasibility of “slightly shorten” the length of theoptical image capturing system is limited as well. Therefore, thehorizontal distance (ED) between two specific neighboring lenses at theheight of a half of the entrance pupil diameter (HEP) has to becontrolled.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of “slightly shorten” the length of the optical imagecapturing system at the same time, the ratio between the horizontaldistance (ED) between two neighboring lenses at the height of a half ofthe entrance pupil diameter (HEP) and the parallel distance (IN) betweenthese two neighboring lens on the optical axis (i.e., ED/IN) has to beparticularly controlled. For example, the horizontal distance betweenthe first lens and the second lens at the height of a half of theentrance pupil diameter (HEP) is denoted by ED12, the horizontaldistance between the first lens and the second lens on the optical axisis denoted by IN12, and the ratio between these two parameters isED12/IN12; the horizontal distance between the second lens and the thirdlens at the height of a half of the entrance pupil diameter (HEP) isdenoted by ED23, the horizontal distance between the second lens and thethird lens on the optical axis is denoted by IN23, and the ratio betweenthese two parameters is ED23/IN23. The ratio between the horizontaldistance between any two neighboring lenses at the height of a half ofthe entrance pupil diameter (HEP) and the horizontal distance betweenthese two neighboring lenses on the optical axis is denoted in the samemanner.

The horizontal distance in parallel with the optical axis between acoordinate point at the height of ½ HEP on the image-side surface of theseventh lens and the first image plane is denoted by EBL. The horizontaldistance in parallel with the optical axis between the point on theimage-side surface of the seventh lens where the optical axis passesthrough and the image plane is denoted by BL. In order to enhance theability to correct aberration and to preserve more space for otheroptical components, the optical image capturing system of the presentinvention can satisfy: 0.2≤EBL/BL≤1.5. The optical image capturingsystem can further include a filtering component, which is providedbetween the seventh lens and the image plane, wherein the horizontaldistance in parallel with the optical axis between the coordinate pointat the height of ½ HEP on the image-side surface of the seventh lens andthe filtering component is denoted by EIR, and the horizontal distancein parallel with the optical axis between the point on the image-sidesurface of the seventh lens where the optical axis passes through andthe filtering component is denoted by PIR. The optical image capturingsystem of the present invention can satisfy: 0.1≤EIR/PIR≤1.1.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>|f7|.

In an embodiment, when |f2|+|f3|+|f4|+|f5|+|f6| and |f1|+|f7| of thelenses satisfy the aforementioned conditions, at least one lens amongthe second to the sixth lenses could have weak positive refractive poweror weak negative refractive power. Herein the weak refractive powermeans the absolute value of the focal length of one specific lens isgreater than 10. When at least one lens among the second to the sixthlenses has weak positive refractive power, it may share the positiverefractive power of the first lens, and on the contrary, when at leastone lens among the second to the sixth lenses has weak negativerefractive power, it may fine tune and correct the aberration of thesystem.

In an embodiment, the seventh lens could have negative refractive power,and an image-side surface thereof is concave, it may reduce back focallength and size. Besides, the seventh lens can have at least aninflection point on at least a surface thereof, which may reduce anincident angle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first embodiment of the presentinvention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a feature map of modulation transformation of the opticalimage capturing system of the first embodiment of the presentapplication in visible light spectrum;

FIG. 1D is a diagram showing the through-focus MTF values of the visiblelight spectrum at the central field of view, 0.3 field of view, and 0.7field of view of the first embodiment of the present invention;

FIG. 1E is a diagram showing the through-focus MTF values of theinfrared light spectrum at the central field of view, 0.3 field of view,and 0.7 field of view of the first embodiment of the present disclosure;

FIG. 2A is a schematic diagram of a second embodiment of the presentinvention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a feature map of modulation transformation of the opticalimage capturing system of the second embodiment of the presentapplication in visible light spectrum;

FIG. 2D is a diagram showing the through-focus MTF values of the visiblelight spectrum at the central field of view, 0.3 field of view, and 0.7field of view of the second embodiment of the present invention;

FIG. 2E is a diagram showing the through-focus MTF values of theinfrared light spectrum at the central field of view, 0.3 field of view,and 0.7 field of view of the second embodiment of the presentdisclosure;

FIG. 3A is a schematic diagram of a third embodiment of the presentinvention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a feature map of modulation transformation of the opticalimage capturing system of the third embodiment of the presentapplication in visible light spectrum;

FIG. 3D is a diagram showing the through-focus MTF values of the visiblelight spectrum at the central field of view, 0.3 field of view, and 0.7field of view of the third embodiment of the present invention;

FIG. 3E is a diagram showing the through-focus MTF values of theinfrared light spectrum at the central field of view, 0.3 field of view,and 0.7 field of view of the third embodiment of the present disclosure;

FIG. 4A is a schematic diagram of a fourth embodiment of the presentinvention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a feature map of modulation transformation of the opticalimage capturing system of the fourth embodiment in visible lightspectrum;

FIG. 4D is a diagram showing the through-focus MTF values of the visiblelight spectrum at the central field of view, 0.3 field of view, and 0.7field of view of the fourth embodiment of the present invention;

FIG. 4E is a diagram showing the through-focus MTF values of theinfrared light spectrum at the central field of view, 0.3 field of view,and 0.7 field of view of the fourth embodiment of the presentdisclosure;

FIG. 5A is a schematic diagram of a fifth embodiment of the presentinvention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application;

FIG. 5C shows a feature map of modulation transformation of the opticalimage capturing system of the fifth embodiment of the presentapplication in visible light spectrum;

FIG. 5D is a diagram showing the through-focus MTF values of the visiblelight spectrum at the central field of view, 0.3 field of view, and 0.7field of view of the fifth embodiment of the present invention;

FIG. 5E is a diagram showing the through-focus MTF values of theinfrared light spectrum at the central field of view, 0.3 field of view,and 0.7 field of view of the fifth embodiment of the present disclosure;

FIG. 6A is a schematic diagram of a sixth embodiment of the presentinvention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application; and

FIG. 6C shows a feature map of modulation transformation of the opticalimage capturing system of the sixth embodiment of the presentapplication in visible light spectrum;

FIG. 6D is a diagram showing the through-focus MTF values of the visiblelight spectrum at the central field of view, 0.3 field of view, and 0.7field of view of the sixth embodiment of the present invention; and

FIG. 6E is a diagram showing the through-focus MTF values of theinfrared light spectrum at the central field of view, 0.3 field of view,and 0.7 field of view of the sixth embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, and an image plane from an object side to animage side. The optical image capturing system further is provided withan image sensor at an image plane. The height for image formation ineach of the following embodiments is about 3.91 mm.

The optical image capturing system can work in three wavelengths,including 486.1 nm, 587.5 nm, and 656.2 nm, wherein 587.5 nm is the mainreference wavelength and is the reference wavelength for obtaining thetechnical characters. The optical image capturing system can also workin five wavelengths, including 480 nm, 510 nm, 555 nm, 610 nm, and 650nm wherein 555 nm is the main reference wavelength, and is the referencewavelength for obtaining the technical characters.

The optical image capturing system of the present invention satisfies0.5≤ΣPPR/|ΣNPR|≤15, and a preferable range is 1≤ΣPPR/|ΣNPR|≤3.0, wherePPR is a ratio of the focal length f of the optical image capturingsystem to a focal length fp of each of lenses with positive refractivepower; NPR is a ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lenses with negativerefractive power; ΣPPR is a sum of the PPRs of each positive lens; andΣNPR is a sum of the NPRs of each negative lens. It is helpful forcontrol of an entire refractive power and an entire length of theoptical image capturing system.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≤10 and0.5≤HOS/f≤10, and a preferable range is 1≤HOS/HOI≤5 and 1≤HOS/f≤7, whereHOI is a half of a diagonal of an effective sensing area of the imagesensor, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e. a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of the size of the system for used incompact cameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.2≤InS/HOS≤1.1, where InS is a distance between the apertureand the image-side surface of the sixth lens. It is helpful for sizereduction and wide angle.

The optical image capturing system of the present invention satisfies0.1≤ΣTP/InTL≤0.9, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the seventhlens, and ETP is a sum of central thicknesses of the lenses on theoptical axis. It is helpful for the contrast of image and yield rate ofmanufacture and provides a suitable back focal length for installationof other elements.

The optical image capturing system of the present invention satisfies0.001≤|R1/R2|≤20, and a preferable range is 0.01≤|R1/R2|<10, where R1 isa radius of curvature of the object-side surface of the first lens, andR2 is a radius of curvature of the image-side surface of the first lens.It provides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−7<(R11−R12)/(R11+R12)<50, where R13 is a radius of curvature of theobject-side surface of the seventh lens, and R14 is a radius ofcurvature of the image-side surface of the seventh lens. It may modifythe astigmatic field curvature.

The optical image capturing system of the present invention satisfiesIN12/f≤3.0, where IN12 is a distance on the optical axis between thefirst lens and the second lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfiesIN67/f≤0.8, where IN67 is a distance on the optical axis between thesixth lens and the seventh lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfies0.1≤(TP1+IN12)/TP2≤10, where TP1 is a central thickness of the firstlens on the optical axis, and TP2 is a central thickness of the secondlens on the optical axis. It may control the sensitivity of manufactureof the system and improve the performance.

The optical image capturing system of the present invention satisfies0.1≤(TP7+IN67)/TP6≤10, where TP6 is a central thickness of the sixthlens on the optical axis, TP7 is a central thickness of the seventh lenson the optical axis, and IN67 is a distance between the sixth lens andthe seventh lens. It may control the sensitivity of manufacture of thesystem and improve the performance.

The optical image capturing system of the present invention satisfies0.1≤TP4/(IN34+TP4+IN45)<1, where TP3 is a central thickness of the thirdlens on the optical axis, TP4 is a central thickness of the fourth lenson the optical axis, TP5 is a central thickness of the fifth lens on theoptical axis, IN34 is a distance on the optical axis between the thirdlens and the fourth lens, IN45 is a distance on the optical axis betweenthe fourth lens and the fifth lens, and InTL is a distance between theobject-side surface of the first lens and the image-side surface of theseventh lens. It may fine tune and correct the aberration of theincident rays layer by layer, and reduce the height of the system.

The optical image capturing system satisfies 0 mm≤HVT71≤3 mm; 0mm<HVT72≤6 mm; 0≤HVT71/HVT72; 0 mm≤|SGC71|≤0.5 mm; 0 mm<|SGC72|≤2 mm;and 0<|SGC72|/(|SGC72|+TP7)≤0.9, where HVT71 a distance perpendicular tothe optical axis between the critical point C71 on the object-sidesurface of the seventh lens and the optical axis; HVT72 a distanceperpendicular to the optical axis between the critical point C72 on theimage-side surface of the seventh lens and the optical axis; SGC71 is adistance on the optical axis between a point on the object-side surfaceof the seventh lens where the optical axis passes through and a pointwhere the critical point C71 projects on the optical axis; SGC72 is adistance on the optical axis between a point on the image-side surfaceof the seventh lens where the optical axis passes through and a pointwhere the critical point C72 projects on the optical axis. It is helpfulto correct the off-axis view field aberration.

The optical image capturing system satisfies 0.2≤HVT72/HOI≤0.9, andpreferably satisfies 0.3≤HVT72/HOI≤0.8. It may help to correct theperipheral aberration.

The optical image capturing system satisfies 0≤HVT72/HOS≤0.5, andpreferably satisfies 0.2≤HVT72/HOS≤0.45. It may help to correct theperipheral aberration.

The optical image capturing system of the present invention satisfies0<SGI711/(SGI711+TP7)≤0.9; 0<SGI721/(SGI721+TP7)≤0.9, and it ispreferable to satisfy 0.1≤SGI711/(SGI711+TP7)≤0.6;0.1≤SGI721/(SGI721+TP7)≤0.6, where SGI711 is a displacement on theoptical axis from a point on the object-side surface of the seventhlens, through which the optical axis passes, to a point where theinflection point on the object-side surface, which is the closest to theoptical axis, projects on the optical axis, and SGI721 is a displacementon the optical axis from a point on the image-side surface of theseventh lens, through which the optical axis passes, to a point wherethe inflection point on the image-side surface, which is the closest tothe optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies0<SGI712/(SGI712+TP7)≤0.9; 0<SGI722/(SGI722+TP7)≤0.9, and it ispreferable to satisfy 0.1≤SGI712/(SGI712+TP7)≤0.6;0.1≤SGI722/(SGI722+TP7)≤0.6, where SGI712 is a displacement on theoptical axis from a point on the object-side surface of the seventhlens, through which the optical axis passes, to a point where theinflection point on the object-side surface, which is the second closestto the optical axis, projects on the optical axis, and SGI722 is adisplacement on the optical axis from a point on the image-side surfaceof the seventh lens, through which the optical axis passes, to a pointwhere the inflection point on the image-side surface, which is thesecond closest to the optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF711|≤5 mm; 0.001 mm≤|HIF721|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF711|≤3.5 mm; 1.5 mm≤|HIF721|≤3.5 mm, where HIF711 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is theclosest to the optical axis, and the optical axis; HIF721 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the seventh lens, which is the closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF712|≤5 mm; 0.001 mm≤|HIF722|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF722|≤3.5 mm; 0.1 mm≤|HIF712|≤3.5 mm, where HIF712 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is thesecond closest to the optical axis, and the optical axis; HIF722 is adistance perpendicular to the optical axis between the inflection pointon the image-side surface of the seventh lens, which is the secondclosest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF713|≤5 mm; 0.001 mm≤|HIF723|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF723|≤3.5 mm; 0.1 mm≤|HIF713|≤3.5 mm, where HIF713 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is the thirdclosest to the optical axis, and the optical axis; HIF723 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the seventh lens, which is the third closest tothe optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF714|≤5 mm; 0.001 mm≤|HIF724|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF724|≤3.5 mm; 0.1 mm≤|HIF714|≤3.5 mm, where HIF714 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is thefourth closest to the optical axis, and the optical axis; HIF724 is adistance perpendicular to the optical axis between the inflection pointon the image-side surface of the seventh lens, which is the fourthclosest to the optical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface isz=ch ²/[1+[1(k+1)c ² h ²]^(0.5)]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ +A20h ²⁰+ . . .   (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of the radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of the refractive power of thesystem. In addition, the opposite surfaces (object-side surface andimage-side surface) of the first to the seventh lenses could be asphericthat can obtain more control parameters to reduce aberration. The numberof aspheric glass lenses could be less than the conventional sphericalglass lenses, which is helpful for reduction of the height of thesystem.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

The optical image capturing system of the present invention could beapplied in a dynamic focusing optical system. It is superior in thecorrection of aberration and high imaging quality so that it could beallied in lots of fields.

The optical image capturing system of the present invention couldfurther include a driving module to meet different demands, wherein thedriving module can be coupled with the lenses to move the lenses. Thedriving module can be a voice coil motor (VCM), which is used to movethe lens for focusing, or can be an optical image stabilization (OIS)component, which is used to lower the possibility of having the problemof image blurring which is caused by subtle movements of the lens whileshooting.

To meet different requirements, at least one lens among the first lensto the seventh lens of the optical image capturing system of the presentinvention can be a light filter, which filters out light of wavelengthshorter than 500 nm. Such effect can be achieved by coating on at leastone surface of the lens, or by using materials capable of filtering outshort waves to make the lens.

To meet different requirements, the image plane of the optical imagecapturing system in the present invention can be either flat or curved.If the image plane is curved (e.g., a sphere with a radius ofcurvature), the incidence angle required for focusing light on the imageplane can be decreased, which is not only helpful to shorten the lengthof the system (TTL), but also helpful to increase the relativeilluminance.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 10 ofthe first embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 110, a secondlens 120, a third lens 130, an aperture 100, a fourth lens 140, a fifthlens 150, a sixth lens 160, a seventh lens 170, an infrared rays filter180, an image plane 190, and an image sensor 192. FIG. 1C shows afeature map of modulation transformation of the optical image capturingsystem of the first embodiment of the present application in visiblelight spectrum. FIG. 1D is a diagram showing the through-focus MTFvalues of the visible light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the first embodiment of thepresent invention. FIG. 1E is a diagram showing the through-focus MTFvalues of the infrared light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the first embodiment of thepresent disclosure. Lights of any field of view of the presentdisclosure can be further divided into sagittal ray and tangential ray,and the spatial frequency of 55 cycles/mm serves as the benchmark forassessing the focus shifts and the values of MTF. A wavelength of theinfrared light is 850 nm.

The first lens 110 has negative refractive power and is made of plastic.An object-side surface 112 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 114 thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 112 has an inflection point thereon, and the image-side surface114 has two inflection points. A thickness of the first lens 110 on theoptical axis is TP1, and a thickness of the first lens 110 at the heightof a half of the entrance pupil diameter (HEP) is denoted by ETP1.

The first lens satisfies S SGI111=−0.1110 mm; SGI121=2.7120 mm;TP1=2.2761 mm; |SGI111|/(|SGI111|+TP1)=0.0465;|SGI121|/(|SGI121|+TP1)=0.5437, where SGI111 is a displacement on theoptical axis from a point on the object-side surface of the first lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the closest to the opticalaxis, projects on the optical axis, and SGI121 is a displacement on theoptical axis from a point on the image-side surface of the first lens,through which the optical axis passes, to a point where the inflectionpoint on the image-side surface, which is the closest to the opticalaxis, projects on the optical axis.

The first lens satisfies SGI112=0 mm; SGI122=4.2315 mm;|SGI112|/(|SGI112|+TP1)=0, where SGI112 is a displacement on the opticalaxis from a point on the object-side surface of the first lens, throughwhich the optical axis passes, to a point where the inflection point onthe object-side surface, which is the second closest to the opticalaxis, projects on the optical axis, and SGI122 is a displacement on theoptical axis from a point on the image-side surface of the first lens,through which the optical axis passes, to a point where the inflectionpoint on the image-side surface, which is the second closest to theoptical axis, projects on the optical axis.

The first lens satisfies HIF111=12.8432 mm; HIF111/HOI=1.7127;HIF121=7.1744 mm; HIF121/HOI=0.9567, where HIF111 is a displacementperpendicular to the optical axis from a point on the object-sidesurface of the first lens, through which the optical axis passes, to theinflection point, which is the closest to the optical axis; HIF121 is adisplacement perpendicular to the optical axis from a point on theimage-side surface of the first lens, through which the optical axispasses, to the inflection point, which is the closest to the opticalaxis.

The first lens satisfies HIF112=0 mm; HIF112/HOI=0; HIF122=9.8592 mm;HIF122/HOI=1.3147, where HIF112 is a displacement perpendicular to theoptical axis from a point on the object-side surface of the first lens,through which the optical axis passes, to the inflection point, which isthe second closest to the optical axis; HIF122 is a displacementperpendicular to the optical axis from a point on the image-side surfaceof the first lens, through which the optical axis passes, to theinflection point, which is the second closest to the optical axis.

The second lens 120 has positive refractive power and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 124thereof, which faces the image side, is a concave aspheric surface. Athickness of the second lens 120 on the optical axis is TP2, andthickness of the second lens 120 at the height of a half of the entrancepupil diameter (HEP) is denoted by ETP2.

For the second lens, a displacement on the optical axis from a point onthe object-side surface of the second lens, through which the opticalaxis passes, to a point where the inflection point on the image-sidesurface, which is the closest to the optical axis, projects on theoptical axis, is denoted by SGI211, and a displacement on the opticalaxis from a point on the image-side surface of the second lens, throughwhich the optical axis passes, to a point where the inflection point onthe image-side surface, which is the closest to the optical axis,projects on the optical axis is denoted by SGI221.

For the second lens, a displacement perpendicular to the optical axisfrom a point on the object-side surface of the second lens, throughwhich the optical axis passes, to the inflection point, which is theclosest to the optical axis is denoted by HIF211, and a displacementperpendicular to the optical axis from a point on the image-side surfaceof the second lens, through which the optical axis passes, to theinflection point, which is the closest to the optical axis is denoted byHIF221.

The third lens 130 has negative refractive power and is made of plastic.An object-side surface 132, which faces the object side, is a convexaspheric surface, and an image-side surface 134, which faces the imageside, is a concave aspheric surface. A thickness of the third lens 130on the optical axis is TP3, and a thickness of the third lens 130 at theheight of a half of the entrance pupil diameter (HEP) is denoted byETP3.

For the third lens 130, SGI311 is a displacement on the optical axisfrom a point on the object-side surface of the third lens, through whichthe optical axis passes, to a point where the inflection point on theobject-side surface, which is the closest to the optical axis, projectson the optical axis, and SGI321 is a displacement on the optical axisfrom a point on the image-side surface of the third lens, through whichthe optical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

For the third lens 130, SGI312 is a displacement on the optical axisfrom a point on the object-side surface of the third lens, through whichthe optical axis passes, to a point where the inflection point on theobject-side surface, which is the second closest to the optical axis,projects on the optical axis, and SGI322 is a displacement on theoptical axis from a point on the image-side surface of the third lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, projects on the optical axis.

For the third lens 130, HIF311 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe third lens, which is the closest to the optical axis, and theoptical axis; HIF321 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the thirdlens, which is the closest to the optical axis, and the optical axis.

For the third lens 130, HIF312 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe third lens, which is the second closest to the optical axis, and theoptical axis; HIF322 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the thirdlens, which is the second closest to the optical axis, and the opticalaxis.

The fourth lens 140 has positive refractive power and is made ofplastic. An object-side surface 142, which faces the object side, is aconvex aspheric surface, and an image-side surface 144, which faces theimage side, is a convex aspheric surface. The object-side surface 142has an inflection point. A thickness of the fourth lens 140 on theoptical axis is TP4, and a thickness of the fourth lens 140 at theheight of a half of the entrance pupil diameter (HEP) is denoted byETP4.

The fourth lens 140 satisfies SGI411=0.0018 mm;|SGI411|/(|SGI411|+TP4)=0.0009, where SGI411 is a displacement on theoptical axis from a point on the object-side surface of the fourth lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the closest to the opticalaxis, projects on the optical axis, and SGI421 is a displacement on theoptical axis from a point on the image-side surface of the fourth lens,through which the optical axis passes, to a point where the inflectionpoint on the image-side surface, which is the closest to the opticalaxis, projects on the optical axis.

For the fourth lens 140, SGI412 is a displacement on the optical axisfrom a point on the object-side surface of the fourth lens, throughwhich the optical axis passes, to a point where the inflection point onthe object-side surface, which is the second closest to the opticalaxis, projects on the optical axis, and SGI422 is a displacement on theoptical axis from a point on the image-side surface of the fourth lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, projects on the optical axis.

The fourth lens 140 further satisfies HIF411=0.7191 mm;HIF411/HOI=0.0959, where HIF411 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fourth lens, which is the closest to the optical axis, and theoptical axis; HIF421 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the fourthlens, which is the closest to the optical axis, and the optical axis.

For the fourth lens 140, HIF412 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fourth lens, which is the second closest to the optical axis, andthe optical axis; HIF422 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the fourthlens, which is the second closest to the optical axis, and the opticalaxis.

The fifth lens 150 has positive refractive power and is made of plastic.An object-side surface 152, which faces the object side, is a concaveaspheric surface, and an image-side surface 154, which faces the imageside, is a convex aspheric surface. The object-side surface 152 and theimage-side surface 154 both have an inflection point. A thickness of thefifth lens 150 on the optical axis is TP5, and a thickness of the fifthlens 150 at the height of a half of the entrance pupil diameter (HEP) isdenoted by ETP5.

The fifth lens 150 satisfies SGI511=−0.1246 mm; SGI521=−2.1477 mm;|SGI511|/(|SGI511|+TP5)=0.0284; |SGI521|/(|SGI521|+TP5)=0.3346, whereSGI511 is a displacement on the optical axis from a point on theobject-side surface of the fifth lens, through which the optical axispasses, to a point where the inflection point on the object-sidesurface, which is the closest to the optical axis, projects on theoptical axis, and SGI521 is a displacement on the optical axis from apoint on the image-side surface of the fifth lens, through which theoptical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

For the fifth lens 150, SGI512 is a displacement on the optical axisfrom a point on the object-side surface of the fifth lens, through whichthe optical axis passes, to a point where the inflection point on theobject-side surface, which is the second closest to the optical axis,projects on the optical axis, and SGI522 is a displacement on theoptical axis from a point on the image-side surface of the fifth lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, projects on the optical axis.

The fifth lens 150 further satisfies HIF511=3.8179 mm; HIF521=4.5480 mm;HIF511/HOI=0.5091; HIF521/HOI=0.6065, where HIF511 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis; HIF521 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the fifth lens, which is the closest to the optical axis, andthe optical axis.

For the fifth lens 150, HIF512 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fifth lens, which is the second closest to the optical axis, and theoptical axis; HIF522 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the fifthlens, which is the second closest to the optical axis, and the opticalaxis.

The sixth lens 160 has negative refractive power and is made of plastic.An object-side surface 162, which faces the object side, is a convexsurface, and an image-side surface 164, which faces the image side, is aconcave surface. The object-side surface 162 and the image-side surface164 both have an inflection point, which could adjust the incident angleof each view field to improve aberration. A thickness of the sixth lens160 on the optical axis is TP6. A thickness in parallel with the opticalaxis at a height of ½ HEP of the sixth lens 160 is ETP6.

The sixth lens 160 satisfies SGI611=0.3208 mm; SGI621=0.5937 mm;|SGI611|/(|SGI611|+TP6)=0.5167; |SGI621|/(|SGI621|+TP6)=0.6643, whereSGI611 is a displacement on the optical axis from a point on theobject-side surface of the sixth lens, through which the optical axispasses, to a point where the inflection point on the object-sidesurface, which is the closest to the optical axis, projects on theoptical axis, and SGI621 is a displacement on the optical axis from apoint on the image-side surface of the sixth lens, through which theoptical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

The sixth lens 160 further satisfies HIF611=1.9655 mm; HIF621=2.0041 mm;HIF611/HOI=0.2621; HIF621/HOI=0.2672, where HIF611 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the sixth lens, which is the closest to theoptical axis, and the optical axis; HIF621 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the sixth lens, which is the closest to the optical axis, andthe optical axis.

The seventh lens 170 has positive refractive power and is made ofplastic. An object-side surface 172, which faces the object side, is aconvex surface, and an image-side surface 174, which faces the imageside, is a concave surface. This would help to shorten the back focallength, whereby to keep the optical image capturing system miniaturized.The object-side surface 172 and the image-side surface 174 both have aninflection point. A thickness of the seventh lens 170 on the opticalaxis is TP7. A thickness in parallel with the optical axis at a heightof ½ HEP of the seventh lens 170 is ETP7.

The seventh lens 170 satisfies SGI711=0.5212 mm; SGI721=0.5668 mm;|SGI711|/(|SGI711|+TP7)=0.3179; |SGI721|/(|SGI721|+TP7)=0.3364, whereSGI711 is a displacement on the optical axis from a point on theobject-side surface of the seventh lens, through which the optical axispasses, to a point where the inflection point on the object-sidesurface, which is the closest to the optical axis, projects on theoptical axis, and SGI721 is a displacement on the optical axis from apoint on the image-side surface of the seventh lens, through which theoptical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

The seventh lens 170 further satisfies HIF711=1.6707 mm; HIF721=1.8616mm; HIF711/HOI=0.2228; HIF721/HOI=0.2482, where HIF711 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the seventh lens, which is the closest to theoptical axis, and the optical axis; HIF721 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the seventh lens, which is the closest to the optical axis,and the optical axis.

A distance in parallel with the optical axis between a coordinate pointat a height of ½ HEP on the object-side surface of the first lens 110and the image plane is ETL, and a distance in parallel with the opticalaxis between the coordinate point at the height of ½ HEP on theobject-side surface of the first lens 110 and a coordinate point at aheight of ½ HEP on the image-side surface of the fourth lens 140 is EIN,which satisfy: ETL=26.980 mm; EIN=24.999 mm; EIN/ETL=0.927.

The optical image capturing system of the first embodiment satisfies:ETP1=2.470 mm; ETP2=5.144 mm; ETP3=0.898 mm; ETP4=1.706 mm; ETP5=3.901mm; ETP6=0.528 mm; ETP7=1.077 mm. The sum of the aforementioned ETP1 toETP7 is SETP, wherein SETP=15.723 mm. In addition, TP1=2.276 mm;TP2=5.240 mm; TP3=0.837 mm; TP4=2.002 mm; TP5=4.271 mm; TP6=0.300 mm;TP7=1.118 mm. The sum of the aforementioned TP1 to TP7 is STP, whereinSTP=16.044 mm; SETP/STP=0.980; SETP/EIN=0.629.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of manufacturing at the same time, the ratio between thethickness (ETP) at the height of a half of the entrance pupil diameter(HEP) and the thickness (TP) of any lens on the optical axis (i.e.,ETP/TP) in the optical image capturing system of the first embodiment isparticularly controlled, which satisfies: ETP1/TP1=1.085;ETP2/TP2=0.982; ETP3/TP3=1.073; ETP4/TP4=0.852; ETP5/TP5=0.914;ETP6/TP6=1.759; ETP7/TP7=0.963.

In order to enhance the ability of correcting aberration, lower thedifficulty of manufacturing, and “slightly shortening” the length of theoptical image capturing system at the same time, the ratio between thehorizontal distance (ED) between two neighboring lenses at the height ofa half of the entrance pupil diameter (HEP) and the parallel distance(IN) between these two neighboring lens on the optical axis (i.e.,ED/IN) in the optical image capturing system of the first embodiment isparticularly controlled, which satisfies: the horizontal distancebetween the first lens 110 and the second lens 120 at the height of ahalf of the entrance pupil diameter (HEP) is denoted by ED12, whereinED12=4.474 mm; the horizontal distance between the second lens 120 andthe third lens 130 at the height of a half of the entrance pupildiameter (HEP) is denoted by ED23, wherein ED23=0.349 mm; the horizontaldistance between the third lens 130 and the fourth lens 140 at theheight of a half of the entrance pupil diameter (HEP) is denoted byED34, wherein ED34=1.660 mm; the horizontal distance between the fourthlens 140 and the fifth lens 150 at the height of a half of the entrancepupil diameter (HEP) is denoted by ED45, wherein ED45=1.794 mm; thehorizontal distance between the fifth lens 150 and the sixth lens 160 atthe height of a half of the entrance pupil diameter (HEP) is denoted byED56, wherein ED56=0.714 mm; the horizontal distance between the sixthlens 160 and the seventh lens 170 at the height of a half of theentrance pupil diameter (HEP) is denoted by ED67, wherein ED67=0.284 mm.The sum of the aforementioned ED12 to ED67 is SED, wherein SED=9.276 mm.

The horizontal distance between the first lens 110 and the second lens120 on the optical axis is denoted by IN12, wherein IN12=4.552 mm, andED12/IN12=0.983. The horizontal distance between the second lens 120 andthe third lens 130 on the optical axis is denoted by IN23, whereinIN23=0.162 mm, and ED23/IN23=2.153. The horizontal distance between thethird lens 130 and the fourth lens 140 on the optical axis is denoted byIN34, wherein IN34=1.927 mm, and ED34/IN34=0.862. The horizontaldistance between the fourth lens 140 and the fifth lens 150 on theoptical axis is denoted by IN45, wherein IN45=1.515 mm, andED45/IN45=1.184. The horizontal distance between the fifth lens 150 andthe sixth lens 160 on the optical axis is denoted by IN56, whereinIN56=0.050 mm, and ED56/IN56=14.285. The horizontal distance between thesixth lens 160 and the seventh lens 170 on the optical axis is denotedby IN67, wherein IN67=0.211 mm, and ED67/IN67=1.345. The sum of theaforementioned IN12 to IN67 is denoted by SIN, wherein SIN=8.418 mm, andSED/SIN=1.102.

The optical image capturing system of the first embodiment satisfies:ED12/ED23=12.816; ED23/ED34=0.210; ED34/ED45=0.925; ED45/ED56=2.512;ED56/ED67=2.512; IN12/IN23=28.080; IN23/IN34=0.084; IN34/IN45=1.272;IN45/IN56=30.305; IN56/IN67=0.236.

The horizontal distance in parallel with the optical axis between acoordinate point at the height of ½ HEP on the image-side surface of theseventh lens 170 and image plane is denoted by EBL, wherein EBL=1.982mm. The horizontal distance in parallel with the optical axis betweenthe point on the image-side surface of the seventh lens 170 where theoptical axis passes through and the image plane is denoted by BL,wherein BL=2.517 mm. The optical image capturing system of the firstembodiment satisfies: EBL/BL=0.7874. The horizontal distance in parallelwith the optical axis between the coordinate point at the height of ½HEP on the image-side surface of the seventh lens 170 and the infraredrays filter 180 is denoted by EIR, wherein EIR=0.865 mm. The horizontaldistance in parallel with the optical axis between the point on theimage-side surface of the seventh lens 170 where the optical axis passesthrough and the infrared rays filter 180 is denoted by PIR, whereinPIR=1.400 mm, and it satisfies: EIR/PIR=0.618.

The features related to the inflection points which are described beloware obtained according to the main reference wavelength of 555 nm.

The infrared rays filter 180 is made of glass and between the seventhlens 170 and the image plane 190. The infrared rays filter 180 gives nocontribution to the focal length of the system.

The optical image capturing system 10 of the first embodiment has thefollowing parameters, which are f=4.3019 mm; f/HEP=1.2; HAF=59.9968degrees; and tan(HAF)=1.7318, where f is a focal length of the system;HAF is a half of the maximum field angle; and HEP is an entrance pupildiameter.

The parameters of the lenses of the first embodiment are f1=−14.5286 mm;|f/f1|=0.2961; f7=8.2933; |f1|>f7; and |f1/f7|=1.7519, where f1 is afocal length of the first lens 110; and f7 is a focal length of theseventh lens 170.

The first embodiment further satisfies|f2|+|f3|+|f4|+|f5|+|f6|=144.7494; |f1|+|f7|=22.8219 and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is a focal length of thesecond lens 120, f3 is a focal length of the third lens 130, f4 is afocal length of the fourth lens 140, f5 is a focal length of the fifthlens 150, f6 is a focal length of the sixth lens 160, and f7 is a focallength of the seventh lens 170.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPPR=f/f2+f/f4+f/f5+f/f7=1.7384; ΣNPR=f/f1+f/f3+f/f6=−0.9999;ΣPPR/|ΣNPR|=1.7386; |f/f2|=0.1774; |f/f3|=0.0443; |f/f4|=0.4411;|f/f5|=0.6012; |f/f6|=0.6595; |f/f7|=0.5187, where PPR is a ratio of afocal length f of the optical image capturing system to a focal lengthfp of each of the lenses with positive refractive power; and NPR is aratio of a focal length f of the optical image capturing system to afocal length fn of each of lenses with negative refractive power.

The optical image capturing system 10 of the first embodiment furthersatisfies InTL+BFL=HOS; HOS=26.9789 mm; HOI=7.5 mm; HOS/HOI=3.5977;HOS/f=6.2715; InS=12.4615 mm; and InS/HOS=0.4619, where InTL is adistance between the object-side surface 112 of the first lens 110 andthe image-side surface 174 of the seventh lens 170; HOS is a height ofthe image capturing system, i.e. a distance between the object-sidesurface 112 of the first lens 110 and the image plane 190; InS is adistance between the aperture 100 and the image plane 190; HOI is a halfof a diagonal of an effective sensing area of the image sensor 192,i.e., the maximum image height; and BFL is a distance between theimage-side surface 174 of the seventh lens 170 and the image plane 190.

The optical image capturing system 10 of the first embodiment furthersatisfies XTP=16.0446 mm; and ΣTP/InTL=0.6559, where XTP is a sum of thethicknesses of the lenses 110-150 with refractive power. It is helpfulfor the contrast of image and yield rate of manufacture and provides asuitable back focal length for installation of other elements.

The optical image capturing system 10 of the first embodiment furthersatisfies |R1/R2|=129.9952, where R1 is a radius of curvature of theobject-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system 10 of the first embodiment furthersatisfies (R13−R14)/(R13+R14)=−0.0806, where R13 is a radius ofcurvature of the object-side surface 172 of the seventh lens 170, andR14 is a radius of curvature of the image-side surface 174 of theseventh lens 170. It may modify the astigmatic field curvature.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPP=f2+f4+f5+f7=49.4535 mm; and f4/(f2+f4+f5+f7)=0.1972, whereΣPP is a sum of the focal lengths fp of each lens with positiverefractive power. It is helpful to share the positive refractive powerof the fourth lens 140 to other positive lenses to avoid the significantaberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣNP=f1+f3+f6=−118.1178 mm; and f1/(f1+f3+f6)=0.1677, where ΣNPis a sum of the focal lengths fn of each lens with negative refractivepower. It is helpful to share the negative refractive power of the firstlens 110 to other negative lenses, which avoids the significantaberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies IN12=4.5524 mm; IN12/f=1.0582, where IN12 is a distance on theoptical axis between the first lens 110 and the second lens 120. It maycorrect chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP1=2.2761 mm; TP2=0.2398 mm; and (TP1+IN12)/TP2=1.3032, whereTP1 is a central thickness of the first lens 110 on the optical axis,and TP2 is a central thickness of the second lens 120 on the opticalaxis. It may control the sensitivity of manufacture of the system andimprove the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP6=0.3000 mm; TP7=1.1182 mm; and (TP7+IN67)/TP6=4.4322, whereTP6 is a central thickness of the sixth lens 160 on the optical axis,TP7 is a central thickness of the seventh lens 170 on the optical axis,and IN67 is a distance on the optical axis between the sixth lens 160and the seventh lens 170. It may control the sensitivity of manufactureof the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies TP3=0.8369 mm; TP4=2.0022 mm; TP5=4.2706 mm; IN34=1.9268 mm;IN45=1.5153 mm; and TP4/(IN34+TP4+IN45)=0.3678, where TP3 is a centralthickness of the third lens 130 on the optical axis, TP4 is a centralthickness of the fourth lens 140 on the optical axis, TP5 is a centralthickness of the fifth lens 150 on the optical axis, IN34 is a distanceon the optical axis between the third lens 130 and the fourth lens 140,IN45 is a distance on the optical axis between the fourth lens 140 andthe fifth lens 150, and InTL is a distance from the object-side surface112 of the first lens 110 to the image-side surface 174 of the seventhlens 170 on the optical axis. It may control the sensitivity ofmanufacture of the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS61=−0.7823 mm; InRS62=−0.2166 mm; and |InRS62|/TP6=0.722,where InRS61 is a displacement from a point on the object-side surface162 of the sixth lens 160 passed through by the optical axis to a pointon the optical axis where a projection of the maximum effective semidiameter of the object-side surface 162 of the sixth lens 160 ends;InRS62 is a displacement from a point on the image-side surface 166 ofthe sixth lens 160 passed through by the optical axis to a point on theoptical axis where a projection of the maximum effective semi diameterof the image-side surface 166 of the sixth lens 160 ends; and TP6 is acentral thickness of the sixth lens 160 on the optical axis. It ishelpful for manufacturing and shaping of the lenses and is helpful toreduce the size.

The optical image capturing system 10 of the first embodiment furthersatisfies HVT61=3.3498 mm; HVT62=3.9860 mm; and HVT61/HVT62=0.8404,where HVT61 is a distance perpendicular to the optical axis between thecritical point on the object-side surface 162 of the sixth lens and theoptical axis; and HVT62 is a distance perpendicular to the optical axisbetween the critical point on the image-side surface 166 of the sixthlens and the optical axis.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS71=−0.2756 mm; InRS72=−0.0938 mm; and |InRS72|/TP7=0.0839,where InRS71 is a displacement from a point on the object-side surface172 of the seventh lens 170 passed through by the optical axis to apoint on the optical axis where a projection of the maximum effectivesemi diameter of the object-side surface 172 of the seventh lens 170ends; InRS72 is a displacement from a point on the image-side surface174 of the seventh lens 170 passed through by the optical axis to apoint on the optical axis where a projection of the maximum effectivesemi diameter of the image-side surface 174 of the seventh lens 170ends; and TP7 is a central thickness of the seventh lens 170 on theoptical axis. It is helpful for manufacturing and shaping of the lensesand is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment satisfiesHVT71=3.6822 mm; HVT72=4.0606 mm; and HVT71/HVT72=0.9068, where HVT71 adistance perpendicular to the optical axis between the critical point onthe object-side surface 172 of the seventh lens and the optical axis;and HVT72 a distance perpendicular to the optical axis between thecritical point on the image-side surface 174 of the seventh lens and theoptical axis.

The optical image capturing system 10 of the first embodiment satisfiesHVT72/HOI=0.5414. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment satisfiesHVT72/HOS=0.1505. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment furthersatisfies |TDT|=2.5678%; |ODT|=2.1302%, where TDT is TV distortion; andODT is optical distortion.

In the present embodiment, the lights of any field of view can befurther divided into sagittal ray and tangential ray, and the spatialfrequency of 55 cycles/mm serves as the benchmark for assessing thefocus shifts and the values of MTF. The focus shifts where thethrough-focus MTF values of the visible sagittal ray at the centralfield of view, 0.3 field of view, and 0.7 field of view of the opticalimage capturing system are at their respective maxima are denoted byVSFS0, VSFS3, and VSFS7 (unit of measurement: mm), respectively. Thevalues of VSFS0, VSFS3, and VSFS7 equal to −0.010 mm, −0.005 mm, and0.015 mm, respectively. The maximum values of the through-focus MTF ofthe visible sagittal ray at the central field of view, 0.3 field ofview, and 0.7 field of view are denoted by VSMTF0, VSMTF3, and VSMTF7,respectively. The values of VSMTF0, VSMTF3, and VSMTF7 equal to 0.891,0.898, and 0.892, respectively. The focus shifts where the through-focusMTF values of the visible tangential ray at the central field of view,0.3 field of view, and 0.7 field of view of the optical image capturingsystem are at their respective maxima, are denoted by VTFS0, VTFS3, andVTFS7 (unit of measurement: mm), respectively. The values of VTFS0,VTFS3, and VTFS7 equal to −0.010 mm, −0.015 mm, and −0.025 mm,respectively. The maximum values of the through-focus MTF of the visibletangential ray at the central field of view, 0.3 field of view, and 0.7field of view are denoted by VTMTF0, VTMTF3, and VTMTF7, respectively.The values of VTMTF0, VTMTF3, and VTMTF7 equal to 0.891, 0.272, and0.251, respectively. The average focus shift (position) of both theaforementioned focus shifts of the visible sagittal ray at three fieldsof view and focus shifts of the visible tangential ray at three fieldsof view is denoted by AVFS (unit of measurement: mm), which satisfiesthe absolute value |(VSFS0+VSFS3+VSFS7+VTFS0+VTFS3+VTFS7)/6|=|−0.008mm|.

The focus shifts where the through-focus MTF values of the infraredsagittal ray at the central field of view, 0.3 field of view, and 0.7field of view of the optical image capturing system are at theirrespective maxima, are denoted by ISFS0, ISFS3, and ISFS7 (unit ofmeasurement: mm), respectively. The values of ISFS0, ISFS3, and ISFS7equal to −0.005 mm, −0.005 mm, and 0.015 mm, respectively. The averagefocus shift (position) of the aforementioned focus shifts of theinfrared sagittal ray at three fields of view is denoted by AISFS (unitof measurement: mm). The maximum values of the through-focus MTF of theinfrared sagittal ray at the central field of view, 0.3 field of view,and 0.7 field of view are denoted by ISMTF0, ISMTF3, and ISMTF7,respectively. The values of ISMTF0, ISMTF3, and ISMTF7 equal to 0.868,0.869, and 0.846, respectively. The focus shifts where the through-focusMTF values of the infrared tangential ray at the central field of view,0.3 field of view, and 0.7 field of view of the optical image capturingsystem are at their respective maxima, are denoted by ITFS0, ITFS3, andITFS7 (unit of measurement: mm), respectively. The values of ITFS0,ITFS3, and ITFS7 equal to 0.005, −0.010, and 0.015, respectively. Theaverage focus shift (position) of the aforementioned focus shifts of theinfrared tangential ray at three fields of view is denoted by AITFS(unit of measurement: mm). The maximum values of the through-focus MTFof the infrared tangential ray at the central field of view, 0.3 fieldof view, and 0.7 field of view are denoted by ITMTF0, ITMTF3, andITMTF7, respectively. The values of ITMTF0, ITMTF3, and ITMTF7 equal to0.868, 0.870, and 0.828, respectively. The average focus shift(position) of both of the aforementioned focus shifts of the infraredsagittal ray at the three fields of view and focus shifts of theinfrared tangential ray at the three fields of view is denoted by AIFS(unit of measurement: mm), which equals to the absolute value of|(ISFS0+ISFS3+ISFS7+ITFS0+ITFS3+ITFS7)/6|=|−0.004 mm|.

The focus shift (difference) between the focal points of the visiblelight and the infrared light at their central fields of view (RGB/IR) ofthe entire optical image capturing system (i.e. wavelength of 850 nmversus wavelength of 555 nm, unit of measurement: mm) is denoted by FS(the distance between the first and second image planes on the opticalaxis), which satisfies the absolute value|(VSFS0+VTFS0)/2−(ISFS0+ITFS0)/2|=|0.005 mm|. The difference (focusshift) between the average focus shift of the visible light in the threefields of view and the average focus shift of the infrared light in thethree fields of view (RGB/IR) of the entire optical image capturingsystem is denoted by AFS (i.e. wavelength of 850 nm versus wavelength of555 nm, unit of measurement: mm), for which the absolute value of|AIFS−AVFS|=|0.004 mm| is satisfied.

For the optical image capturing system of the first embodiment, thevalues of MTF for visible light in the spatial frequency of 55 cycles/mmat the optical axis, 0.3 field of view, and 0.7 field of view on animage plane are respectively denoted by MTFE0, MTFE3, and MTFE7, whereinMTFE0 is around 0.35, MTFE3 is around 0.14, and MTFE7 is around 0.28;the values of MTF for visible light in the spatial frequency of 110cycles/mm at the optical axis, 0.3 field of view, and 0.7 field of viewon an image plane are respectively denoted by MTFQ0, MTFQ3, and MTFQ7,wherein MTFQ0 is around 0.126, MTFQ3 is around 0.075, and MTFQ7 isaround 0.177; the values of modulation transfer function (MTF) in thespatial frequency of 220 cycles/mm at the optical axis, 0.3 field ofview, and 0.7 field of view on an image plane are respectively denotedby MTFH0, MTFH3, and MTFH7, wherein MTFH0 is around 0.01, MTFH3 isaround 0.01, and MTFH7 is around 0.01.

For the optical image capturing system of the first embodiment, when theinfrared of wavelength of 850 nm focuses on the image plane, the valuesof MTF in spatial frequency (55 cycles/mm) at the optical axis, 0.3 HOI,and 0.7 HOI on an image plane are respectively denoted by MTFI0, MTFI3,and MTFI7, wherein MTFI0 is around 0.01, MTFI3 is around 0.01, and MTFI7is around 0.01.

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 4.3019 mm; f/HEP = 1.2; HAF = 59.9968 deg Radius ofcurvature Thickness Refractive Abbe Focal length Surface (mm) (mm)Material index number (mm) 0 Object plane infinity 1 1^(st) lens−1079.499964 2.276 plastic 1.565 58.00 −14.53 2 8.304149657 4.552 32^(nd) lens 14.39130913 5.240 plastic 1.650 21.40 24.25 4 130.08694820.162 5 3^(rd) lens 8.167310118 0.837 plastic 1.650 21.40 −97.07 66.944477468 1.450 7 Aperture plane 0.477 8 4^(th) lens 121.5965254 2.002plastic 1.565 58.00 9.75 9 −5.755749302 1.515 10 5^(th) lens−86.27705938 4.271 plastic 1.565 58.00 7.16 11 −3.942936258 0.050 126^(th) lens 4.867364751 0.300 plastic 1.650 21.40 −6.52 13 2.2206049830.211 14 7^(th) lens 1.892510651 1.118 plastic 1.650 21.40 8.29 152.224128115 1.400 16 Infrared plane 0.200 BK_7 1.517 64.2 rays filter 17plane 0.917 18 Image plane plane Reference wavelength: 555 nm.

TABLE 2 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k2.500000E+01 −4.711931E−01 1.531617E+00 −1.153034E+01  −2.915013E+00 4.886991E+00 −3.459463E+01 A4 5.236918E−06 −2.117558E−04 7.146736E−054.353586E−04 5.793768E−04 −3.756697E−04  −1.292614E−03 A6 −3.014384E−08 −1.838670E−06 2.334364E−06 1.400287E−05 2.112652E−04 3.901218E−04−1.602381E−05 A8 −2.487400E−10   9.605910E−09 −7.479362E−08 −1.688929E−07  −1.344586E−05  −4.925422E−05  −8.452359E−06 A101.170000E−12 −8.256000E−11 1.701570E−09 3.829807E−08 1.000482E−064.139741E−06  7.243999E−07 A12 0.000000E+00  0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 A14 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 Surface 9 10 11 12 13 14 15 k −7.549291E+00 −5.000000E+01 −1.740728E+00  −4.709650E+00 −4.509781E+00 −3.427137E+00 −3.215123E+00 A4 −5.583548E−03 1.240671E−04 6.467538E−04 −1.872317E−03 −8.967310E−04−3.189453E−03 −2.815022E−03  A6  1.947110E−04 −4.949077E−05 −4.981838E−05  −1.523141E−05 −2.688331E−05 −1.058126E−05 1.884580E−05 A8−1.486947E−05 2.088854E−06 9.129031E−07 −2.169414E−06 −8.324958E−07 1.760103E−06 −1.017223E−08  A10 −6.501246E−08 −1.438383E−08 7.108550E−09 −2.308304E−08 −6.184250E−09 −4.730294E−08 3.660000E−12 A12 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+00 A14  0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00

The detail parameters of the first embodiment are listed in Table 1, inwhich the unit of the radius of curvature, thickness, and focal lengthare millimeter, and surface 0-10 indicates the surfaces of all elementsin the system in sequence from the object side to the image side. Table2 is the list of coefficients of the aspheric surfaces, in which A1-A20indicate the coefficients of aspheric surfaces from the first order tothe twentieth order of each aspheric surface. The following embodimentshave the similar diagrams and tables, which are the same as those of thefirst embodiment, so we do not describe it again.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system 20 ofthe second embodiment of the present invention includes, along anoptical axis from an object side to an image side, a first lens 210, asecond lens 220, an aperture 200, a third lens 230, a fourth lens 240, afifth lens 250, a sixth lens 260, a seventh lens 270, an infrared raysfilter 280, an image plane 290, and an image sensor 292. FIG. 2C shows afeature map of modulation transformation of the optical image capturingsystem of the second embodiment of the present application in visiblelight spectrum. FIG. 2D is a diagram showing the through-focus MTFvalues of the visible light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the second embodiment of thepresent invention. FIG. 2E is a diagram showing the through-focus MTFvalues of the infrared light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the second embodiment of thepresent disclosure. Lights of any field of view of the presentdisclosure can be further divided into sagittal ray and tangential ray,and the spatial frequency of 55 cycles/mm serves as the benchmark forassessing the focus shifts and the values of MTF. A wavelength of theinfrared light is 850 nm.

The first lens 210 has negative refractive power and is made of glass.An object-side surface 212 thereof, which faces the object side, is aconvex spherical surface, and an image-side surface 214 thereof, whichfaces the image side, is a concave spherical surface.

The second lens 220 has negative refractive power and is made of glass.An object-side surface 222 thereof, which faces the object side, is aconvex spherical surface, and an image-side surface 224 thereof, whichfaces the image side, is a concave spherical surface.

The third lens 230 has positive refractive power and is made of glass.An object-side surface 232, which faces the object side, is a concavespherical surface, and an image-side surface 234, which faces the imageside, is a convex spherical surface. The object-side surface 232 has aninflection point.

The fourth lens 240 has positive refractive power and is made of glass.An object-side surface 242, which faces the object side, is a convexspherical surface, and an image-side surface 244, which faces the imageside, is a convex spherical surface.

The fifth lens 250 has positive refractive power and is made of glass.An object-side surface 252, which faces the object side, is a convexspherical surface, and an image-side surface 254, which faces the imageside, is a convex spherical surface.

The sixth lens 260 has negative refractive power and is made of glass.An object-side surface 262, which faces the object side, is a concavespherical surface, and an image-side surface 264, which faces the imageside, is a convex spherical surface. Whereby, the incident angle of eachview field could be adjusted to improve aberration.

The seventh lens 270 has positive refractive power and is made of glass.An object-side surface 272, which faces the object side, is a convexspherical surface, and an image-side surface 274, which faces the imageside, is a concave spherical surface. It may help to shorten the backfocal length to keep small in size. In addition, which may reduce anincident angle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

The infrared rays filter 280 is made of glass and between the seventhlens 270 and the image plane 290. The infrared rays filter 280 gives nocontribution to the focal length of the system.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 1.1063 mm; f/HEP = 1.2; HAF = 100 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 12.81416352 2.000 glass2.001 29.13 −5.48966 2 3.560026641 3.032 3 2^(nd) lens 10.67329511 2.000glass 2.001 29.13 −3.67309 4 2.488957865 4.704 5 Aperture 1E+18 0.203 63^(rd) lens −346.5103482 2.299 glass 1.497 81.56 10.5734 7 −5.2005025190.200 8 4^(th) lens 11.84741378 2.404 glass 1.497 81.56 11.7876 9−10.85986117 0.200 10 5^(th) lens 6.243441203 2.753 glass 1.497 81.567.96561 11 −9.295107665 0.306 12 6^(th) lens −6.585154258 2.000 glass2.002 19.32 −8.96126 13 −27.79175646 0.200 14 7^(th) lens 6.2789314082.474 glass 1.658 50.85 10.0301 15 100.5655695 0.224 16 Infrared 1E+181.000 BK_7 1.517 64.2 rays filter 17 1E+18 1.003 18 Image 1E+18 −0.003plane Reference wavelength: 555 nm; the position of blocking light: theeffective half diameter of the clear aperture of the fourth surface is2.150 mm; the effective diameter of the clear aperture of the seventhsurface is 1.750 mm.

TABLE 4 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A4 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A6 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A8 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A120.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 Surface 9 10 11 12 13 14 15 k 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A4 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A6 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A80.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A12 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment based on Table 3 and Table4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 0.830.23 0.15 ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 2.022 2.033 2.279 2.386 2.7252.012 ETP7 ETL EBL EIN EIR PIR 2.458 26.992 2.223 24.769 0.223 0.224EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.918 0.643 0.995 15.91515.931 0.999 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 1.0111.017 0.991 0.992 0.990 1.006 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 0.9942.223 1 8.854 8.845 1.001 ED12 ED23 ED34 ED45 ED56 ED67 3.012 4.8640.229 0.227 0.301 0.221 ED12/ ED23/ ED34/ IN12 IN23 IN34 ED45/IN45ED56/IN56 ED67/IN67 0.993 0.991 1.147 1.134 0.985 1.104 |f/f1| |f/f2||f/f3| |f/f4| |f/f5| |f/f6| 0.2015 0.3012 0.1046 0.0938 0.1389 0.1234|f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN67/f 0.1103 0.5234 0.5503 0.95112.7410 0.1808 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6 1.49460.3474 2.5161 1.3370 HOS InTL HOS/HOI InS/HOS ODT % TDT % 26.999724.7763 14.8841 0.5653 −129.0830 90.6623 HVT11 HVT12 HVT21 HVT22 HVT31HVT32 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 HVT61 HVT62 HVT71 HVT72HVT72/HOI HVT72/HOS 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 VSFS0VSFS3 VSFS7 VTFS0 VTFS3 VTFS7 −0.010 −0.005 0.015 −0.010 −0.015 −0.025VSMTF0 VSMTF3 VSMTF7 VTMTF0 VTMTF3 VTMTF7 0.891 0.898 0.892 0.891 0.2720.251 ISFS0 ISFS3 ISFS7 ITFS0 ITFS3 ITFS7 −0.005 −0.005 0.015 −0.005−0.010 −0.015 ISMTF0 ISMTF3 ISMTF7 ITMTF0 ITMTF3 ITMTF7 0.868 0.8690.846 0.868 0.870 0.828 FS AIFS AVFS AFS 0.005 −0.004 −0.008 0.004

The results of the equations of the second embodiment based on Table 3and Table 4 are listed in the following table:

Values related to the inflection points of the second embodiment(Reference wavelength: 555 nm) HIF311 0 HIF311/HOI 0 SGI311 0|SGI311|/(|SGI311| + TP3) 0

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system ofthe third embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 310, a secondlens 320, an aperture 300, a third lens 330, a fourth lens 340, a fifthlens 350, a sixth lens 360, a seventh lens 370, an infrared rays filter380, an image plane 390, and an image sensor 392. FIG. 3C shows afeature map of modulation transformation of the optical image capturingsystem of the third embodiment of the present application in visiblelight spectrum. FIG. 3D is a diagram showing the through-focus MTFvalues of the visible light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the third embodiment of thepresent invention. FIG. 3E is a diagram showing the through-focus MTFvalues of the infrared light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the third embodiment of thepresent disclosure. Lights of any field of view of the presentdisclosure can be further divided into sagittal ray and tangential ray,and the spatial frequency of 55 cycles/mm serves as the benchmark forassessing the focus shifts and the values of MTF. A wavelength of theinfrared light is 850 nm.

The first lens 310 has negative refractive power and is made of glass.An object-side surface 312 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 314 thereof, whichfaces the image side, is a concave aspheric surface.

The second lens 320 has positive refractive power and is made of glass.An object-side surface 322 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 324 thereof, whichfaces the image side, is a convex aspheric surface.

The third lens 330 has negative refractive power and is made of glass.An object-side surface 332 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 334 thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 322 and the image-side surface 334 both have an inflectionpoint.

The fourth lens 340 has positive refractive power and is made of glass.An object-side surface 342, which faces the object side, is a convexaspheric surface, and an image-side surface 344, which faces the imageside, is a convex aspheric surface. The object-side surface 342 has aninflection point.

The fifth lens 350 has positive refractive power and is made of glass.An object-side surface 352, which faces the object side, is a convexaspheric surface, and an image-side surface 354, which faces the imageside, is a convex aspheric surface. The object-side surface 352 has aninflection point.

The sixth lens 360 has positive refractive power and is made of glass.An object-side surface 362, which faces the object side, is a convexaspheric surface, and an image-side surface 364, which faces the imageside, is a convex aspheric surface. The object-side surface 362 and theimage-side surface 364 both have an inflection point. Whereby, theincident angle of each view field could be adjusted to improveaberration.

The seventh lens 370 has negative refractive power and is made of glass.An object-side surface 372, which faces the object side, is a concaveaspheric surface, and an image-side surface 374, which faces the imageside, is a convex aspheric surface. It may help to shorten the backfocal length to keep small in size. In addition, the object-side surface372 has an inflection point, and the image-side surface 374 has twoinflection points. It may reduce an incident angle of the light of anoff-axis field of view and correct the aberration of the off-axis fieldof view.

The infrared rays filter 380 is made of glass and between the seventhlens 370 and the image plane 390. The infrared rays filter 380 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 3.2527 mm; f/HEP = 1.6; HAF = 100 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 18.43462476 2.000 glass2.001 29.13 −8.91581 2 5.709746751 6.239 3 2^(nd) lens −13.233281839.571 glass 2.002 19.32 15.0427 4 −9.648795938 1.858 5 Aperture 1E+180.436 6 3^(rd) lens 85.04549784 2.000 glass 2.002 19.32 −14.5159 712.36748049 0.267 8 4^(th) lens 28.73730258 4.161 glass 1.497 81.5611.6676 9 −6.936276207 0.200 10 5^(th) lens 17.69746786 3.116 glass1.497 81.56 30.3273 11 −97.287663 0.200 12 6^(th) lens 7.610112562 5.214glass 1.497 81.56 8.86673 13 −8.13132248 0.321 14 7^(th) lens−6.470602521 2.000 glass 2.002 19.32 −8.27735 15 −32.96956359 0.418 16Infrared 1E+18 1.000 BK_7 1.517 64.2 rays filter 17 1E+18 1.000 18 Image1E+18 0.000 plane Reference wavelength: 555 nm; the position of blockinglight: the effective half diameter of the clear aperture of the ninthsurface is 4.500 mm.

TABLE 6 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+00 A4 7.833779E−05 −1.102508E−04  −1.195991E−04 5.750004E−04 −5.966606E−04 −6.114253E−04 1.830109E−03 A6 −3.778056E−07 −9.764729E−07  1.366886E−05 −8.640009E−06  −3.553601E−05 −4.853131E−06−8.189844E−05  A8 0.000000E+00 1.977155E−17 −4.888384E−07  1.649385E−07 3.991516E−06 −2.228917E−06 −1.774810E−06  A10 0.000000E+00 3.210507E−216.370354E−09 6.724570E−10 −1.907188E−07  5.707495E−08 1.376916E−08 A120.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+00 Surface 9 10 11 12 13 14 15 k 0.000000E+000.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A4 6.583832E−04 −2.666867E−04  −7.163402E−04  −9.296122E−052.301903E−04 3.114617E−04 1.645779E−03 A6 −2.447085E−05  2.245654E−061.209701E−05 −2.728331E−06 −1.264738E−05  4.164839E−05 −9.329592E−05  A81.087688E−06 −3.335222E−07  1.111150E−07 −1.835631E−07 7.185962E−071.140767E−07 3.190350E−06 A10 −4.567453E−08  3.932960E−09 −6.999095E−09 −7.583020E−09 1.387767E−08 4.715151E−09 −4.470870E−08  A12 0.000000E+000.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+000.000000E+00

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment based on Table 5 and Table6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 0.680.37 0.54 ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 2.063 9.557 2.036 4.067 3.0815.082 ETP7 ETL EBL EIN EIR PIR 2.066 39.972 2.431 37.540 0.432 0.418EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.939 0.745 1.034 27.95128.061 0.996 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 1.0310.999 1.018 0.977 0.989 0.975 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 1.0332.417 0.9942 9.589 9.521 1.007 ED12 ED23 ED34 ED45 ED56 ED67 6.109 2.3530.245 0.303 0.274 0.304 ED12/ ED23/ ED34/ IN12 IN23 IN34 ED45/IN45ED56/IN56 ED67/IN67 0.979 1.025 0.920 1.516 1.371 0.949 |f/f1| |f/f2||f/f3| |f/f4| |f/f5| |f/f6| 0.3648 0.2162 0.2241 0.2788 0.1073 0.3668|f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN67/f 0.3930 1.2345 0.7165 1.72311.9181 0.0986 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6 0.59271.0363 0.8608 0.4451 HOS InTL HOS/HOI InS/HOS ODT % TDT % 39.999737.5825 7.9999 0.5083 −127.1830 106.6900 HVT11 HVT12 HVT21 HVT22 HVT31HVT32 0.0000 0.0000 0.0000 0.0000 2.0293 0.0000 HVT61 HVT62 HVT71 HVT72HVT72/HOI HVT72/HOS 0.0000 5.2141 5.2003 3.1075 0.6215 0.0777 VSFS0VSFS3 VSFS7 VTFS0 VTFS3 VTFS7 0.010 −0.000 −0.020 0.010 0.015 0.010VSMTF0 VSMTF3 VSMTF7 VTMTF0 VTMTF3 VTMTF7 0.721 0.663 0.694 0.721 0.4210.629 ISFS0 ISFS3 ISFS7 ITFS0 ITFS3 ITFS7 0.010 −0.000 −0.030 0.0100.015 0.020 ISMTF0 ISMTF3 ISMTF7 ITMTF0 ITMTF3 ITMTF7 0.560 0.499 0.6000.560 0.413 0.499 FS AIFS AVFS AFS 0.000 0.004 0.004 0.000

The results of the equations of the third embodiment based on Table 5and Table 6 are listed in the following table:

Values related to the inflection points of the third embodiment(Reference wavelength: 555 nm) HIF311 1.1923 HIF311/HOI 0.2385 SGI3110.0071 |SGI311|/(|SGI311| + TP3) 0.0035 HIF321 2.6242 HIF321/HOI 0.5248SGI321 0.2469 |SGI321|/(|SGI321| + TP3) 0.1099 HIF411 2.8684 HIF411/HOI0.5737 SGI411 0.2142 |SGI411|/(|SGI411| + TP4) 0.0490 HIF511 3.5883HIF511/HOI 0.7177 SGI511 0.3204 |SGI511|/(|SGI511| + TP5) 0.0932 HIF6114.4782 HIF611/HOI 0.8956 SGI611 1.3434 |SGI611|/(|SGI611| + TP6) 0.2049HIF621 3.9742 HIF621/HOI 0.7948 SGI621 −0.9714 |SGI621|/(|SGI621| + TP6)0.1571 HIF711 3.5268 HIF711/HOI 0.7054 SGI711 −0.9132|SGI711|/(|SGI711| + TP7) 0.3135 HIF721 1.4393 HIF721/HOI 0.2879 SGI721−0.0251 |SGI721|/(|SGI721| + TP7) 0.0124 HIF722 4.7428 HIF722/HOI 0.9486SGI722 −0.0127 |SGI722|/(|SGI722| + TP7) 0.0063

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system 40 ofthe fourth embodiment of the present invention includes, along anoptical axis from an object side to an image side, a first lens 410, asecond lens 420, an aperture 400, a third lens 430, a fourth lens 440, afifth lens 450, a sixth lens 460, a seventh lens 470, an infrared raysfilter 480, an image plane 490, and an image sensor 492. FIG. 4C shows afeature map of modulation transformation of the optical image capturingsystem of the fourth embodiment of the present application in visiblelight spectrum. FIG. 4D is a diagram showing the through-focus MTFvalues of the visible light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the fourth embodiment of thepresent invention. FIG. 4E is a diagram showing the through-focus MTFvalues of the infrared light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the fourth embodiment of thepresent disclosure. Lights of any field of view of the presentdisclosure can be further divided into sagittal ray and tangential ray,and the spatial frequency of 55 cycles/mm serves as the benchmark forassessing the focus shifts and the values of MTF. A wavelength of theinfrared light is 850 nm.

The first lens 410 has negative refractive power and is made of glass.An object-side surface 412 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 414 thereof, whichfaces the image side, is a concave aspheric surface.

The second lens 420 has positive refractive power and is made of glass.An object-side surface 422 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 424 thereof, whichfaces the image side, is a convex aspheric surface.

The third lens 430 has positive refractive power and is made of glass.An object-side surface 432 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 434 thereof, whichfaces the image side, is a convex aspheric surface.

The fourth lens 440 has negative refractive power and is made of glass.An object-side surface 442, which faces the object side, is a convexaspheric surface, and an image-side surface 444, which faces the imageside, is a concave aspheric surface. The object-side surface 442 and theimage-side surface 444 both have an inflection point.

The fifth lens 450 has positive refractive power and is made of plastic.An object-side surface 452, which faces the object side, is a convexaspheric surface, and an image-side surface 454, which faces the imageside, is a convex aspheric surface. The object-side surface 452 has aninflection point.

The sixth lens 460 has positive refractive power and is made of plastic.An object-side surface 462, which faces the object side, is a convexaspheric surface, and an image-side surface 464, which faces the imageside, is a convex aspheric surface. The object-side surface 462 and theimage-side surface 464 both have an inflection point. Whereby, theincident angle of each view field could be adjusted to improveaberration.

The seventh lens 470 has positive refractive power and is made of glass.An object-side surface 472, which faces the object side, is a concaveaspheric surface, and an image-side surface 474, which faces the imageside, is a convex aspheric surface. The object-side surface 472 has aninflection point, and the image-side surface 444 has two inflectionpoints. It may help to shorten the back focal length to keep small insize. In addition, it may reduce an incident angle of the light of anoff-axis field of view and correct the aberration of the off-axis fieldof view.

The infrared rays filter 480 is made of glass and between the seventhlens 470 and the image plane 490. The infrared rays filter 480 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 2.3139 mm; f/HEP = 1.8; HAF = 100 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 18.0425411 2.000 glass2.001 29.13 −4.9146 2 3.668251896 3.518 3 2^(nd) lens −9.093475153 4.908glass 2.002 19.32 8.61225 4 −5.654915667 0.200 5 Aperture 1E+18 0.517glass 6 3^(rd) lens −4.253968136 2.733 1.497 81.56 23.509 7 −3.7871869570.200 8 4^(th) lens 24.23869014 2.000 glass 2.002 19.32 −10.6702 97.155354174 0.217 10 5^(th) lens 8.765494987 4.469 glass 1.497 81.568.1515 11 −6.284490286 0.200 12 6^(th) lens 9.707626166 4.623 glass1.497 81.56 8.21822 13 −5.959849574 0.197 14 7^(th) lens −5.9823217962.000 glass 2.002 19.32 42.9897 15 −6.1423035 0.219 16 Infrared 1E+181.000 BK_7 1.517 64.2 rays filter 17 1E+18 1.002 18 Image 1E+18 −0.003plane Reference wavelength: 555 nm; the position of blocking light: theeffective half diameter of the clear aperture of the seventh surface is5.500 mm; the effective diameter of the clear aperture of the eleventhsurface is 5.750 mm.

TABLE 8 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A4 3.628081E−04 −9.382537E−04  −6.182000E−04 3.090272E−03 8.126609E−03 −2.456014E−04  −3.856670E−03  A6−1.848280E−06  8.644205E−05 4.255409E−05 −6.301403E−05  −7.405758E−04 3.161645E−06 2.517445E−05 A8 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A10 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A12 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 Surface 9 10 11 12 13 14 15 k0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A4 −2.835953E−03  −2.643505E−05  9.523945E−041.030953E−03 4.361332E−04 1.871837E−03 5.921034E−03 A6 −1.384629E−05 −7.378358E−05  −1.586426E−05  −2.524249E−05  1.033616E−04 4.308778E−05−7.362674E−05  A8 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A120.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment based on Table 7 and Table8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 0.480.28 0.42 ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 2.045 4.895 2.725 2.021 4.4124.567 ETP7 ETL EBL EIN EIR PIR 2.002 29.988 2.252 27.737 0.252 0.219EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.925 0.817 1.149 22.66722.733 0.997 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 1.0230.997 0.997 1.010 0.987 0.988 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 1.0012.219 0.9853 5.070 5.048 1.004 ED12 ED23 ED34 ED45 ED56 ED67 3.438 0.7050.263 0.212 0.254 0.198 ED12/ ED23/ ED34/ IN12 IN23 IN34 ED45/IN45ED56/IN56 ED67/IN67 0.977 0.984 1.314 0.978 1.271 1.002 |f/f1| |f/f2||f/f3| |f/f4| |f/f5| |f/f6| 0.4708 0.2687 0.0984 0.2169 0.2839 0.2816|f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN67/f 0.0538 1.0677 0.6064 1.76081.5203 0.0852 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6 0.57070.3663 1.1242 0.4753 HOS InTL HOS/HOI InS/HOS ODT % TDT % 29.999827.7810 6.0000 0.6458 −138.3440 114.0070 HVT11 HVT12 HVT21 HVT22 HVT31HVT32 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 HVT61 HVT62 HVT71 HVT72HVT72/HOI HVT72/HOS 0.0000 4.2870 4.4553 3.1242 0.6248 0.1041 VSFS0VSFS3 VSFS7 VTFS0 VTFS3 VTFS7 0.025 −0.015 −0.010 0.025 0.005 −0.015VSMTF0 VSMTF3 VSMTF7 VTMTF0 VTMTF3 VTMTF7 0.886 0.812 0.784 0.886 0.2810.433 ISFS0 ISFS3 ISFS7 ITFS0 ITFS3 ITFS7 0.025 −0.025 −0.030 0.0250.010 0.015 ISMTF0 ISMTF3 ISMTF7 ITMTF0 ITMTF3 ITMTF7 0.825 0.829 0.7950.825 0.635 0.687 FS AIFS AVFS AFS 0.000 0.003 0.003 0.000

The results of the equations of the fourth embodiment based on Table 7and Table 8 are listed in the following table:

Values related to the inflection points of the fourth embodiment(Reference wavelength: 555 nm) HIF411 0.9523 HIF411/HOI 0.1905 SGI4110.0156 |SGI411|/(|SGI411| + TP4) 0.0077 HIF421 2.1131 HIF421/HOI 0.4226SGI421 0.2614 |SGI421|/(|SGI421| + TP4) 0.1156 HIF511 2.7747 HIF511/HOI0.5549 SGI511 0.4155 |SGI511|/(|SGI511| + TP5) 0.0851 HIF611 4.9979HIF611/HOI 0.9996 SGI611 1.6353 |SGI611|/(|SGI611| + TP6) 0.2613 HIF6212.8526 HIF621/HOI 0.5705 SGI621 −0.6424 |SGI621|/(|SGI621| + TP6) 0.1220HIF711 2.7179 HIF711/HOI 0.5436 SGI711 −0.5335 |SGI711|/(|SGI711| + TP7)0.2106 HIF721 1.6799 HIF721/HOI 0.3360 SGI721 −0.1887|SGI721|/(|SGI721| + TP7) 0.0862 HIF722 4.5290 HIF722/HOI 0.9058 SGI722−0.1373 |SGI722|/(|SGI722| + TP7) 0.0642

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system ofthe fifth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 510, a secondlens 520, an aperture 500, a third lens 530, a fourth lens 540, a fifthlens 550, a sixth lens 560, a seventh lens 570, an infrared rays filter580, an image plane 590, and an image sensor 592. FIG. 5C shows afeature map of modulation transformation of the optical image capturingsystem of the fifth embodiment of the present application in visiblelight spectrum. FIG. 5D is a diagram showing the through-focus MTFvalues of the visible light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the fifth embodiment of thepresent invention. FIG. 5E is a diagram showing the through-focus MTFvalues of the infrared light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the fifth embodiment of thepresent disclosure. Lights of any field of view of the presentdisclosure can be further divided into sagittal ray and tangential ray,and the spatial frequency of 55 cycles/mm serves as the benchmark forassessing the focus shifts and the values of MTF. A wavelength of theinfrared light is 850 nm.

The first lens 510 has negative refractive power and is made of glass.An object-side surface 512, which faces the object side, is a convexspherical surface, and an image-side surface 514, which faces the imageside, is a concave spherical surface.

The second lens 520 has positive refractive power and is made of glass.An object-side surface 522 thereof, which faces the object side, is aconcave spherical surface, and an image-side surface 524 thereof, whichfaces the image side, is a convex spherical surface.

The third lens 530 has positive refractive power and is made of glass.An object-side surface 532, which faces the object side, is a convexspherical surface, and an image-side surface 534, which faces the imageside, is a convex spherical surface.

The fourth lens 540 has negative refractive power and is made of glass.An object-side surface 542, which faces the object side, is a concavespherical surface, and an image-side surface 544, which faces the imageside, is a convex spherical surface.

The fifth lens 550 has positive refractive power and is made of glass.An object-side surface 552, which faces the object side, is a convexspherical surface, and an image-side surface 554, which faces the imageside, is a convex spherical surface.

The sixth lens 560 has positive refractive power and is made of glass.An object-side surface 562, which faces the object side, is a convexspherical surface, and an image-side surface 564, which faces the imageside, is a concave spherical surface. Whereby, the incident angle ofeach view field could be adjusted to improve aberration.

The seventh lens 570 has negative refractive power and is made of glass.An object-side surface 572, which faces the object side, is a concavespherical surface, and an image-side surface 574, which faces the imageside, is a convex spherical surface. It may help to shorten the backfocal length to keep small in size. In addition, it may reduce anincident angle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

The infrared rays filter 580 is made of glass and between the fifth lens550 and the image plane 590. The infrared rays filter 580 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 3.5977 mm; f/HEP = 1.8; HAF = 80 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 16.3941175 4.582 glass2.001 29.13 −6.41877 2 3.986360017 4.318 3 2^(nd) lens −22.368616568.000 glass 2.002 19.32 15.9169 4 −11.04161103 0.340 5 Aperture 1E+181.912 glass 6 3^(rd) lens 18.0888417 3.663 1.497 81.56 8.53923 7−5.188198284 0.267 8 4^(th) lens −5.023943006 2.000 glass 2.002 19.32−11.5176 9 −10.60513926 0.200 10 5^(th) lens 66.93373932 3.890 glass1.497 81.56 16.8097 11 −9.387754651 0.200 12 6^(th) lens 9.3978258433.646 glass 1.694 53.20 15.6298 13 58.12299156 1.271 14 7^(th) lens−15.41329257 2.000 glass 2.002 19.32 −16.6095 15 −200.0197529 0.711 16Infrared 1E+18 1.192 BK_7 1.517 64.2 rays filter 17 1E+18 0.812 18 Image1E+18 −0.004 plane Reference wavelength: 555 nm; the position ofblocking light: the effective half diameter of the clear aperture of theseventh surface is 4.300 mm.

TABLE 10 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A4 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A6 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A8 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A120.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 Surface 9 10 11 12 13 14 15 k 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A4 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A6 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A80.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A12 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment based on Table 9 and Table10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 0.670.42 0.11 ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 4.678 7.977 3.538 2.053 3.8293.602 ETP7 ETL EBL EIN EIR PIR 2.030 38.970 2.713 36.256 0.713 0.711EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.930 0.764 1.004 27.70827.781 0.997 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 1.0210.997 0.966 1.027 0.984 0.988 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 1.0152.710 0.9989 8.549 8.508 1.005 ED12 ED23 ED34 ED45 ED56 ED67 4.168 2.3250.264 0.255 0.307 1.230 ED12/ ED23/ ED34/ IN12 IN23 IN34 ED45/IN45ED56/IN56 ED67/IN67 0.965 1.032 0.988 1.273 1.533 0.968 |f/f1| |f/f2||f/f3| |f/f4| |f/f5| |f/f6| 0.5605 0.2260 0.4213 0.3124 0.2140 0.2302|f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN67/f 0.2166 1.5244 0.6567 2.32141.2002 0.3534 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6 0.40331.8640 1.1124 0.8972 HOS InTL HOS/HOI InS/HOS ODT % TDT % 38.999736.2894 7.7999 0.5580 −75.5513 49.1462 HVT11 HVT12 HVT21 HVT22 HVT31HVT32 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 HVT61 HVT62 HVT71 HVT72HVT72/HOI HVT72/HOS 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 VSFS0VSFS3 VSFS7 VTFS0 VTFS3 VTFS7 −0.010 −0.010 −0.000 −0.010 −0.015 −0.010VSMTF0 VSMTF3 VSMTF7 VTMTF0 VTMTF3 VTMTF7 0.705 0.720 0.665 0.705 0.4690.121 ISFS0 ISFS3 ISFS7 ITFS0 ITFS3 ITFS7 −0.010 −0.010 −0.000 −0.010−0.005 0.010 ISMTF0 ISMTF3 ISMTF7 ITMTF0 ITMTF3 ITMTF7 0.680 0.743 0.5870.680 0.765 0.547 FS AIFS AVFS AFS 0.000 −0.004 −0.009 0.005

The results of the equations of the fifth embodiment based on Table 9and Table 10 are listed in the following table:

Values related to the inflection points of the fifth embodiment(Reference wavelength: 555 nm) HIF211 0 HIF211/HOI 0 SGI211 0|SGI211|/(|SGI211| + TP2) 0

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system ofthe sixth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 610, an aperture600, a second lens 620, a third lens 630, a fourth lens 640, a fifthlens 650, a sixth lens 660, a seventh lens 670, an infrared rays filter680, an image plane 690, and an image sensor 692. FIG. 6C shows afeature map of modulation transformation of the optical image capturingsystem of the sixth embodiment of the present application in visiblelight spectrum. FIG. 6D is a diagram showing the through-focus MTFvalues of the visible light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the sixth embodiment of thepresent invention. FIG. 6E is a diagram showing the through-focus MTFvalues of the infrared light spectrum at the central field of view, 0.3field of view, and 0.7 field of view of the sixth embodiment of thepresent disclosure. Lights of any field of view of the presentdisclosure can be further divided into sagittal ray and tangential ray,and the spatial frequency of 55 cycles/mm serves as the benchmark forassessing the focus shifts and the values of MTF. A wavelength of theinfrared light is 850 nm.

The first lens 610 has negative refractive power and is made of glass.An object-side surface 612, which faces the object side, is a convexspherical surface, and an image-side surface 614, which faces the imageside, is a concave spherical surface.

The second lens 620 has positive refractive power and is made of glass.An object-side surface 622 thereof, which faces the object side, is aconcave spherical surface, and an image-side surface 624 thereof, whichfaces the image side, is a convex spherical surface.

The third lens 630 has negative refractive power and is made of glass.An object-side surface 632, which faces the object side, is a concavespherical surface, and an image-side surface 634, which faces the imageside, is a convex spherical surface.

The fourth lens 640 has positive refractive power and is made of glass.An object-side surface 642, which faces the object side, is a convexspherical surface, and an image-side surface 644, which faces the imageside, is a convex spherical surface.

The fifth lens 650 has negative refractive power and is made of glass.An object-side surface 652, which faces the object side, is a convexspherical surface, and an image-side surface 654, which faces the imageside, is a concave spherical surface.

The sixth lens 660 has positive refractive power and is made of glass.An object-side surface 662, which faces the object side, is a convexspherical surface, and an image-side surface 664, which faces the imageside, is a convex spherical surface. Whereby, the incident angle of eachview field could be adjusted to improve aberration.

The seventh lens 670 has positive refractive power and is made of glass.An object-side surface 672, which faces the object side, is a convexspherical surface, and an image-side surface 674, which faces the imageside, is a convex spherical surface. The image-side surface 674 has aninflection point. It may help to shorten the back focal length to keepsmall in size. In addition, it may reduce an incident angle of the lightof an off-axis field of view and correct the aberration of the off-axisfield of view.

The infrared rays filter 680 is made of glass and between the fifth lens650 and the image plane 690. The infrared rays filter 680 gives nocontribution to the focal length of the system.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 4.8139 mm; f/HEP = 1.8; HAF = 70 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 39.54933668 2.000 glass1.517 64.20 −8.869671 2 3.989012795 6.415 3 Aperture 1E+18 0.336 glass 42^(nd) lens −22.16007528 5.345 2.001 29.13 7.063128 5 −5.879601349 0.368glass 6 3^(rd) lens −5.312833715 2.000 2.002 19.32 −13.152696 7−10.83074836 0.200 8 4^(th) lens 22.42820063 3.625 glass 1.497 81.5620.450187 9 −17.23453558 0.200 10 5^(th) lens 53.79157428 2.000 glass2.002 19.32 −23.669587 11 15.73460584 0.650 12 6^(th) lens 25.686533814.165 glass 1.497 81.56 20.722828 13 −15.96786491 0.200 14 7^(th) lens12.16681759 6.490 glass 1.497 81.56 23.579801 15 −200.02 3.007 16Infrared 1E+18 1.000 BK_7 1.517 64.2 rays filter 17 1E+18 1.001 18 Image1E+18 −0.001 plane Reference wavelength: 555 nm; the position ofblocking light: the effective half diameter of the clear aperture of theseventh surface is 4.500 mm.

TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A4 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A6 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A8 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A120.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 Surface 9 10 11 12 13 14 15 k 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 A4 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 A6 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A80.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 A10 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 A12 0.000000E+000.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00

An equation of the aspheric surfaces of the sixth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the sixth embodiment based on Table 11 and Table12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 0.750.4 0.12 ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 2.213 5.228 2.090 3.531 2.0414.072 ETP7 ETL EBL EIN EIR PIR 6.410 38.977 5.011 33.966 3.011 3.007EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.871 0.753 1.002 25.58625.624 0.998 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 1.1060.978 1.045 0.974 1.021 0.978 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 0.9885.007 0.9992 8.380 8.369 1.001 ED12 ED23 ED34 ED45 ED56 ED67 6.474 0.3510.325 0.270 0.627 0.333 ED12/ ED23/ ED34/ IN12 IN23 IN34 ED45/IN45ED56/IN56 ED67/IN67 0.959 0.953 1.627 1.350 0.965 1.663 |f/f1| |f/f2||f/f3| |f/f4| |f/f5| |f/f6| 0.5516 0.7056 0.3816 0.2386 0.2130 0.2355|f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN67/f 0.2070 1.6204 0.9126 1.77551.4025 0.0415 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6 1.27930.5408 1.6374 1.6062 HOS InTL HOS/HOI InS/HOS ODT % TDT % 39.000133.9934 7.8000 0.7842 −62.2276 43.7400 HVT11 HVT12 HVT21 HVT22 HVT31HVT32 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 HVT61 HVT62 HVT71 HVT72HVT72/HOI HVT72/HOS 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 VSFS0VSFS3 VSFS7 VTFS0 VTFS3 VTFS7 −0.010 −0.015 −0.020 −0.010 −0.010 0.010VSMTF0 VSMTF3 VSMTF7 VTMTF0 VTMTF3 VTMTF7 0.814 0.643 0.547 0.814 0.4170.127 ISFS0 ISFS3 ISFS7 ITFS0 ITFS3 ITFS7 −0.010 −0.015 −0.025 −0.010−0.015 −0.010 ISMTF0 ISMTF3 ISMTF7 ITMTF0 ITMTF3 ITMTF7 0.834 0.7470.436 0.834 0.736 0.468 FS AIFS AVFS AFS 0.000 −0.014 −0.009 0.005

The results of the equations of the sixth embodiment based on Table 11and Table 12 are listed in the following table:

Values related to the inflection points of the sixth embodiment(Reference wavelength: 555 nm) HIF211 0 HIF211/HOI 0 SGI211 0|SGI211|/(|SGI211| + TP2) 0

It must be pointed out that the embodiments described above are onlysome embodiments of the present invention. All equivalent structureswhich employ the concepts disclosed in this specification and theappended claims should fall within the scope of the present invention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having refractive power; a second lens having refractivepower; a third lens having refractive power; a fourth lens havingrefractive power; a fifth lens having refractive power; a sixth lenshaving refractive power; a seventh lens having refractive power; a firstimage plane, which is an image plane specifically for visible light andperpendicular to the optical axis; a through-focus modulation transferrate (value of MTF) at a first spatial frequency having a maximum valueat central field of view of the first image plane; and a second imageplane, which is an image plane specifically for infrared light andperpendicular to the optical axis; the through-focus modulation transferrate (value of MTF) at the first spatial frequency having a maximumvalue at central of field of view of the second image plane; wherein theoptical image capturing system consists of the seven lenses withrefractive power; at least one lens among the first to the seventhlenses has positive refractive power; each lens among the first lens tothe seventh lens has an object-side surface, which faces the objectside, and an image-side surface, which faces the image side; wherein theoptical image capturing system satisfies:1.0≤f/HEP≤10.0;0 deg<HAF≤150 deg;0.2≤SETP/STP<1;|FS|≤60 μm; and1≤HOS/HOI≤15; where f1, f2, f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOI is a maximum height for imageformation perpendicular to the optical axis on the image plane; HOS is adistance between the object-side surface of the first lens and the firstimage plane on the optical axis; InTL is a distance from the object-sidesurface of the first lens to the image-side surface of the seventh lenson the optical axis; HAF is a half of a maximum view angle of theoptical image capturing system; ETP1, ETP2, ETP3, ETP4, ETP5, EFP6, andETP7 are respectively a thickness at the height of ½ HEP of the firstlens, the second lens, the third lens, the fourth lens, the fifth lens,the sixth lens, and the seventh lens; SETP is a sum of theaforementioned ETP1 to ETP7; TP1, TP2, TP3, TP4, TP5, TP5, and TP7 arerespectively a thickness of the first lens, the second lens, the thirdlens, the fourth lens, the fifth lens, the sixth lens, and the seventhlens on the optical axis; STP is a sum of the aforementioned TP1 to TP7;FS is a distance on the optical axis between the first image plane andthe second image plane.
 2. The optical image capturing system of claim1, wherein a wavelength of the infrared light ranges from 700 nm to 1300nm, and the first spatial frequency is denoted by SP1, which satisfiesthe following condition: SP1≤440 cycles/mm.
 3. The optical imagecapturing system of claim 1, wherein the optical image capturing systemfurther satisfies:1≤HOS/HOI≤10.
 4. The optical image capturing system of claim 1, whereinat least one lens among the first lens to the seventh lens is made ofglass.
 5. The optical image capturing system of claim 1, wherein theoptical image capturing system further satisfies:|FS|≤10 μm.
 6. The optical image capturing system of claim 1, whereinthe optical image capturing system further satisfies:0.2≤EIN/ETL<1; where ETL is a distance in parallel with the optical axisbetween a coordinate point at a height of ½ HEP on the object-sidesurface of the first lens and the first image plane; EIN is a distancein parallel with the optical axis between the coordinate point at theheight of ½ HEP on the object-side surface of the first lens and acoordinate point at a height of ½ HEP on the image-side surface of theseventh lens.
 7. The optical image capturing system of claim 2, whereinthe optical image capturing system further satisfies:0.2≤SETP/EIN<1; where ETP1, ETP2, ETP3, ETP4, ETP5, ETP6, and ETP7 arerespectively a thickness in parallel with the optical axis at a heightof ½ HEP of the first lens to the seventh lens, wherein SETP is a sum ofthe aforementioned ETP1 to ETP7.
 8. The optical image capturing systemof claim 1, wherein the optical image capturing system furthersatisfies:0.1≤EBL/BL≤1.5; where EBL is a horizontal distance in parallel with theoptical axis between a coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and image plane; BL is ahorizontal distance in parallel with the optical axis between the pointon the image-side surface of the seventh lens where the optical axispasses through and the image plane.
 9. The optical image capturingsystem of claim 1, further comprising an aperture, wherein a wavelengthof the infrared light ranges from 700 nm to 1300 nm, and the firstspatial frequency is denoted by SP1, which satisfies the followingcondition:0.2≤InS/HOS≤1.1; andSP1≤55 cycles/mm; where InS is a distance between the aperture and thefirst image plane on the optical axis.
 10. An optical image capturingsystem, in order along an optical axis from an object side to an imageside, comprising: a first lens having refractive power; a second lenshaving refractive power; a third lens having refractive power; a fourthlens having refractive power; a fifth lens having refractive power; asixth lens having refractive power; a seventh lens having refractivepower; a first image plane, which is an image plane specifically forvisible light and perpendicular to the optical axis; a through-focusmodulation transfer rate (value of MTF) at a first spatial frequencyhaving a maximum value at central field of view of the first imageplane, and the first spatial frequency being 55 cycles/mm; and a secondimage plane, which is an image plane specifically for infrared light andperpendicular to the optical axis; the through-focus modulation transferrate (value of MTF) at the first spatial frequency having a maximumvalue at central of field of view of the second image plane, and thefirst spatial frequency being 55 cycles/mm; wherein the optical imagecapturing system consists of the seven lenses with refractive power; atleast one lens among the first lens to the seventh lens is made ofglass; at least one lens among the first lens to the seventh lens haspositive refractive power; each lens among the first lens to the seventhlens has an object-side surface, which faces the object side, and animage-side surface, which faces the image side; wherein the opticalimage capturing system satisfies:1≤f/HEP≤10;0 deg<HAF≤150 deg;0.2≤EIN/ETL<1;|FS|≤30 μm; and1≤HOS/HOI≤15; where f1, f2, f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOI is a maximum height for imageformation perpendicular to the optical axis on the image plane; HOS is adistance between the object-side surface of the first lens and the firstimage plane on the optical axis; InTL is a distance from the object-sidesurface of the first lens to the image-side surface of the seventh lenson the optical axis; HAF is a half of a maximum view angle of theoptical image capturing system; FS is a distance on the optical axisbetween the first image plane and the second image plane; ETL is adistance in parallel with the optical axis between a coordinate point ata height of ½ HEP on the object-side surface of the first lens and thefirst image plane; EIN is a distance in parallel with the optical axisbetween the coordinate point at the height of ½ HEP on the object-sidesurface of the first lens and a coordinate point at a height of ½ HEP onthe image-side surface of the seventh lens.
 11. The optical imagecapturing system of claim 10, wherein each two neighboring lenses amongthe first to the seventh lenses are separated by air.
 12. The opticalimage capturing system of claim 10, wherein the optical image capturingsystem further satisfies:MTFE0≥0.1;MTFE3≥0.01; andMTFE7≥0.01; where HOI is a maximum height for image formationperpendicular to the optical axis on the image plane; MTFE0, MTFE3, andMTFE7 are respectively values of modulation transfer function in aspatial frequency of 55 cycles/mm at the optical axis, 0.3 HOI, and 0.7HOI on an image plane.
 13. The optical image capturing system of claim10, wherein at least one lens among the first lens to the seventh lensis made of glass, and the lens made of glass is aspheric surface. 14.The optical image capturing system of claim 10, wherein the opticalimage capturing system further satisfies:|FS|≤10 μm.
 15. The optical image capturing system of claim 10, whereinthe optical image capturing system further satisfies:1≤HOS/HOI≤10.
 16. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies:IN34+IN45≤TP3;IN34+IN45≤TP4; andIN34+IN45≤TP5; where IN34 is a distance on the optical axis between thethird lens and the fourth lens; IN45 is a distance on the optical axisbetween the fourth lens and the fifth lens; TP3 is a thickness of thethird lens on the optical axis; TP4 is a thickness of the fourth lens onthe optical axis; and TP5 is a thickness of the fifth lens on theoptical axis.
 17. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies:0<ED12/IN12≤35; where ED12 is a horizontal distance between animage-side surface of the first lens and an object-side surface of thesecond lens at the height of a half of the entrance pupil diameter(HEP); IN12 is a horizontal distance between the first lens and thesecond lens on the optical axis.
 18. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:0≤IN67/f≤5.0; where IN67 is a distance on the optical axis between thesixth lens and the seventh lens.
 19. The optical image capturing systemof claim 10, wherein at least one lens among the first lens to theseventh lens is a light filter, which is capable of filtering out lightof wavelengths shorter than 500 nm.
 20. An optical image capturingsystem, in order along an optical axis from an object side to an imageside, comprising: a first lens having refractive power; a second lenshaving refractive power; a third lens having refractive power; a fourthlens having refractive power; a fifth lens having refractive power; asixth lens having refractive power; a seventh lens having refractivepower; a first average image plane, which is an image plane specificallyfor visible light and perpendicular to the optical axis; the firstaverage image plane being installed at the average position of thedefocusing positions, where through-focus modulation transfer rates(values of MTF) of the visible light at central field of view, 0.3 fieldof view, and 0.7 field of view are at their respective maximum at afirst spatial frequency; the first spatial frequency being 55 cycles/mm;and a second average image plane, which is an image plane specificallyfor infrared light and perpendicular to the optical axis; the secondaverage image plane being installed at the average position of thedefocusing positions, where through-focus modulation transfer rates ofthe infrared light (values of MTF) at central field of view, 0.3 fieldof view, and 0.7 field of view are at their respective maximum at thefirst spatial frequency; the first spatial frequency being 55 cycles/mm;wherein the optical image capturing system consists of the seven lenseshaving refractive power; at least one lens among the first lens to theseventh lens is made of glass; each lens among the first lens to theseventh lens has an object-side surface, which faces the object side,and an image-side surface, which faces the image side; wherein theoptical image capturing system satisfies:1≤f/HEP≤10;0 deg<HAF≤150 deg;0.5≤SETP/STP<1;|AFS|≤30 μm; and1≤HOS/HOI≤10; where f1, f2, f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HAF is a half of a maximum viewangle of the optical image capturing system; HOI is a maximum height forimage formation perpendicular to the optical axis on the image plane;HOS is a distance between the object-side surface of the first lens andthe first average image plane on the optical axis; InTL is a distancefrom the object-side surface of the first lens to the image-side surfaceof the seventh lens on the optical axis; AFS is a distance on theoptical axis between the first average image plane and the secondaverage image plane; ETP1, ETP2, ETP3, ETP4, ETP5, ETP6, and ETP7 arerespectively a thickness at the height of ½ HEP of the first lens, thesecond lens, the third lens, the fourth lens, the fifth lens, the sixthlens, and the seventh lens; SETP is a sum of the aforementioned ETP1 toETP7; TP1, TP2, TP3, TP4, TP5, TP6, and TP7 are respectively a thicknessof the first lens, the second lens, the third lens, the fourth lens, thefifth lens, the sixth lens, and the seventh lens on the optical axis;STP is a sum of the aforementioned TP1 to TP7.
 21. The optical imagecapturing system of claim 20, wherein the optical image capturing systemfurther satisfies:0.2≤EIN/ETL<1; where ETL is a distance in parallel with the optical axisbetween a coordinate point at a height of ½ HEP on the object-sidesurface of the first lens and the first average image plane; EIN is adistance in parallel with the optical axis between the coordinate pointat the height of ½ HEP on the object-side surface of the first lens anda coordinate point at a height of ½ HEP on the image-side surface of theseventh lens.
 22. The optical image capturing system of claim 20,wherein all of the first lens to the seventh lens are made of glass. 23.The optical image capturing system of claim 20, wherein at least onesurface of at least one lens among the first lens to the seventh lens isaspheric surface.
 24. The optical image capturing system of claim 20,wherein the optical image capturing system further satisfies:|AFS|≤30 μm.
 25. The optical image capturing system of claim 20, furthercomprising an aperture and an image sensor, wherein the image sensingdevice is disposed on the first average image plane and comprises atleast 100 thousand pixels; the optical image capturing system furthersatisfies:0.2≤InS/HOS≤1.1; where InS is a distance between the aperture and thefirst average image plane on the optical axis.